Meaning. While some text codes (like brb, lol, and omg) are simple ones that parents can understand, it can be difficult for parents to understand many codes teenagers use nowadays. Summary: · The added I at the beginning just refers to the person that is saying this, so ISTG means “I Swear To God”. 1 definitions of ISTG. ISTG and OMG can also be used interchangeably often. -ISTG that was the best pizza ever! -I put your racket back in your duffle bag istg. showing only Slang/Internet Slang definitions ( show all 7 definitions) Note: We have 1 other definition for ISTG in our Acronym Attic. 3. It can be written in both lowercase “istg” and capital “ISTG” letters. This is also very similar to. Likewise, if you have ever seen the text code "ISTG" in texting and wondered what does ISTG mean in text. ISTG stands for “I swear to God. I swear to fucking god. ISTG Meaning= ThreatUse Cases & Examples. Today, I'll walk you through what ISTG means in text. Use Cases & Examples. Whenever a TikTok user opens their app, they are directed to their For You Page, which is a stream of videos that TikTok thinks that user will like. ” This abbreviation is commonly used in informal conversations on various digital. Having a parental control app on your child’s phone will give you. It is a reference to swearing or commitment to God that is not something to take lightly as it is a risk that the person who is saying it could be punished in the event of lying. -ISTG that was the best pizza ever! -I put your racket back in your duffle bag istg. It can be used to express emotions, surprise, or sudden kind of feelings. The Meaning of ISTG in Text. ABC – This doesn’t stand for anything. Its meaning is “I Swear To God,” and it is commonly used to add sincerity or emphasis to a statement. In simple terms, “istg” stands for “I swear to God,” a popular expression used to emphasize the truthfulness or intensity of a statement. The expression “I swear to God” is used for centuries and originates directly from the Old English word “swear” which means swearing. What does ISTG mean in the text? Ans. It is commonly. ISTG is an acronym that stands for “I Swear To God”. Jamie Grill / Getty. The abbreviation “ISTG” is a shorthand. ’. It’s often used as an exclamation or a way to emphasize something and can be written in lower or upper case letters. What does Istg mean in text message . suggest new definition. This. Like, "ISTG, if I get one more. TikTok lingo is hard to keep up with. ” Origin of ISTG. This is a casual phrase that many people use both online and in real life (imagine someone exclaiming “I swear to God!” when they’re frustrated or emphasizing a point). ISTFG. Usually, students or the young generation use this acronym. It stands for “I swear to God. 查看翻译. ”. So, the next time you see someone using “istg” in a message or post, you’ll know exactly what they mean. For example, three sample text messages using the abbreviation ISTFG could be: 1. FYP means For You Page. ISTG is an acronym used for “I Swear To God. Social media platforms: Snapchat, Instagram, Twitter, TikTok, and more. It represents an empathetic or mildly shocked response to unexpected news or events. ISTG meaning is “I Swear To God” and is one of the most widely used acronyms in the English language. ”. For example, they might say “ISTG this homework sucks. The slang abbreviation ISTG is frequently used as an interjection to express emotion or as an attestation of honesty. ISTG=Make a PromiseWhat Is ISTG Meaning in SlangIstg Slang Usage (Examples and Use Cases)ISTG Meaning on TikTokISTG Meaning SnapchatFAQs on ISTG Meaning1. ISTFG, if you don’t stop playing your music so loudly, I’m going to lose it. But while the slang term ISTG is harmless, other teenage slang terms could indicate that your teen is talking about risky behaviors or communicating with potentially dangerous people. ISTFG means “I Swear To Fing God,” a phrase used to emphasize sincerity or seriousness when making a statement. What does 'ISTG' mean? "ISTG" stands for "I swear to God," an acronym usually used to express the seriousness of a situation or assure you're not joking when sharing a surprising fact. This is a common acronym that is used online, typically in text-based communication. It’s also like STG. Some of these words and acronyms are used on other video games and social media platforms too. -ISTG that was the best pizza ever! -I put your racket back in your duffle bag istg. What does LFG ð mean? LFG as “let’s freaking go” has since become widespread in texts among friends as a way to excite or “hype up” one another about a particular event or situation. It is used to express frustration, anger, or disbelief. Confused about slang like cap, HB, ATP, and more? We defined some popular TikTok acronyms for you. It is commonly used in text messaging to express the seriousness of a situation or to assure that a statement is not a joke. If you see someone using ISTG when texting, they’re probably emphasizing how serious they are about something. It’s similar to the term ‘ONG. ETA meaning: estimated time of arrival. This abbreviation is commonly used in informal conversations on various digital platforms, such as text messages, social media posts, and online forums. ISTG has multiple definitions that can be used in various settings. Read Also: What does CFS mean on Instagram? Common Uses for ISTG . Clear Of Patient Diagnosis B. ” Origin of ISTG. Usage: “Oh nice, you finally finished it! Welcome to the club B)” What does BB mean?What Does ISTG Mean in Texts or on Social Media? ISTG means “I swear to God” in text messages and on social media platforms like TikTok, Snapchat, Twitter, Instagram, and more. You will find information about the origin and other possible meanings in all types of information on this acronym, including its. This initialism should be avoided in professional situations or in conversing with someone who is religious. Its meaning is “I Swear To God,” and it is commonly used to add sincerity or emphasis to a statement. The texting term ISTG, which means "I Swear To God," tells people that you really do mean what you're saying. ”. What Does ISTG Mean? In internet chatting and text messaging, the acronym “istg” actually means the phrase “I swear to God. Definition of ISTG in Slang/Internet Slang. What does ISTFG mean? This page is about the various possible meanings of the acronym, abbreviation, shorthand or slang term: ISTFG. For example, if someone decides to message you with insulting comments about your hair, then you might reply with "STFU. U Jelly has become a very popular expression, and because of its viral spreading nature, it has achieved meme status. ATP meaning: answer the phone. This is a group of teachers that are more than friends. Promise. You might learn your child is using this slang term by chance when a text pops up on the phone screen. OTP meaning: one true pairing (a couple that fans prefer to all other. The ISTG acronym is commonly used in response to a person who doubts something that you said. So, if you ever heard OMG (O My God), another popular acronym, ISTG won’t surprise you anymore. The”I” is the person who is saying it, while”F” is an expletive “F” can be an exclamation point added to the expression. It is a commonly used slang expression used to emphasize that someone is telling the truth, or to add emphasis to a statement. Do you know what ISTG means in a text message? Watch this video to find out when to use ISTG in a text message and what it means!What Does “ISTG” Stand For? “ISTG” is an acronym that stands for “I Swear to God. The term comes from “shipping” within fandom culture. ISTFG means “I Swear To Fing God” and is typically used in informal texting to express frustration or disbelief. This can be seen in phrases like: “ISTG, I’m always here for you” or “ISTG, I’ll never forget what you did for me”. It’s a widely used acronym in text messaging and online chatting on social networking sites. Page ContentsWhat Is ISTG Meaning1. Expand Your Lexicon: Discover 5+ Similar Words for ISTFG When it comes to texting, understanding similar. This expression is most likely something you've heard in ordinary conversation. In conclusion, “ISTG” is an acronym that stands for “I swear to God. ISTG Meaning. "Meaning; ISTG: I Swear to God: ISTG: Immigrant Ships Transcribers Guild: ISTG: Information Storage Technology Group (University of Twente; Netherlands) ISTG: Inter-Site Topology Generator: ISTG: Implicit State Transition Graph: ISTG: Integrated Systems Tech Group (Tampa, FL) ISTG: Innovative Science and Technology Group (est. ISTFG. Let’s talk about the other meanings of this common abbreviation and find out what it means for different people in different contexts. new search. While the presence of the word “God” might indicate some religious connotation, it’s not a religious term at all. IYKYK meaning: if you know, you know. What Does Istg Mean In Text? I swear to God ISTG means “I swear to God. STFG stands for Super Teacher Friends Group. The term is primarily used to emphasize a point you’re making and can reiterate anger or annoyance. It is very similar to ISTFG meaning, however, there are additional letters added within the acronym. Specifically, as internet usage is increasing daily, people. . IYKYK meaning: if you know, you know. 2. It can be used as an exclamation, where users are expressing disbelief or shock. ISTG stands for “I swear to God” and is often used on Snapchat to emphasize a point or express strong emotion. " ISTG is used to add emphasis to a statement (usually a promise, threat,. It may sound like a new term to some, but this one is very familiar to social media users. ” Kids often use this to express frustration or exasperation. What does B) mean? Back when emojis weren’t a thing, ‘emoticons’ were used to add more emotions to the text. FOMO meaning: the fear of missing out. This phrase can be used to swear truthfully without having to use a more serious swear word, such as the word "God". This is also very similar to. Matching search results: Since the STG meaning is often expressed fully when in a verbal conversation, the term STG should only be used in casual conversations via text or on. This is only for close friends. 4. When used in text conversations, ISTG retains its original meaning of “I swear to God. It is often used in informal conversations, especially when expressing frustration or disbelief. It is used to emphasize a statement, a promise, or a claim, to express frustration, or to make a solemn vow. It is very similar to ISTFG meaning, however, there are additional letters added within the acronym. It is an expression used to emphasize the truthfulness or sincerity of a statement. What Does ISTG Mean? Introduction. ” Definition: Istfg is an acronym for “I swear to f Up. Prison gang. ISTG Meaning. ISTG stands for "I Swear to God. You’ll find it all over the internet, from social media platforms like twitter and instagram to direct messages between friends. "I swear to. While some text codes (like brb, lol, and omg) are simple ones that parents can understand, it can be difficult for parents to understand many codes teenagers use nowadays. One of the known acronyms is “ISTG” or “istg”. It’s used to convey a deep sense of seriousness about a situation or to emphasize a point being made. GTFO can be used to express disbelief or displeasure. Use ISTG to show you’re not joking about something, or to express annoyance or frustration with something (or someone). '. What does OTP mean in texting? “OTP” means “one true pair/pairing,” according to Merriam-Webster. ISTG is used to express frustration or annoyance at something or to show emphasis on a statement. The phrase “I swear to God” has been used for hundreds of years and is basically taken from the Old English word “swear” which means an oath. It can be used to convey extreme seriousness, exasperation, or surprise, and is usually used outside of a serious religious. "I swear to. The origin of ‘ISTG’ can be traced back to the phrase “I swear to God,” which. " “ISTG” meaning over text message. " ISTG is used to add emphasis to a statement (usually a promise, threat, excuse or apology), or as an interjection which expresses surprise, skepticism or exasperation (similar to OMG ("Oh My God!") ). ISTG is an acronym that is short for “I swear to God”. It's not typically used in a religious context. – What does istg Mean in Text – ISTG is a popular online abbreviation among today’s youth. Capitalization The slang term and abbreviation “ISTG” is typically spelled in ALL CAPS or all lowercase letters. What does 'ISTG' mean? "ISTG" stands for "I swear to God," an acronym usually used to express the seriousness of a situation or assure you're not joking when sharing a surprising fact. ETA meaning: estimated time of arrival. What does STG mean?U Jelly is often used to goad someone online or in-person because you possess an article that they do not have, or because you have attained some kind of gamer achievement or minor online fame. Matching search results: Since the STG meaning is often expressed fully when in a verbal conversation, the term STG should only be used in casual conversations via text or on social media. It’s a direct and sometimes blunt way of communicating that the information just shared doesn’t impress, affect, or matter to the person asking “so what. 2. It is commonly used as an exclamation or interjection. When someone uses ISTG, they are essentially emphasizing. So, if you ever heard OMG (O My God), another popular acronym, ISTG won’t surprise you anymore. This phrase is typically employed to express surprise, disbelief or concern over a given situation. Start the day smarter. The media could not be loaded, either because the server or network failed or because the format is not supported. TLDR meaning: too long; didn't read. Usually, students or the young generation use this acronym. Going deeper into its meaning, ISTG sounds quite similar to OMG ‘Oh My God!’. This expression is used to emphasize the truthfulness or seriousness of a statement. This phrase has a couple of variants, S2G and ISTG, and is frequently used in texting or on social media. There needs to be a TikTok user manual that includes a glossary because new abbreviations and slang words are constantly being churned out and I, a millennial, cannot keep up. What does 'ISTG' mean? "ISTG" stands for "I swear to God," an acronym usually used to express the seriousness. Simply put, “ISTG” stands for “ I swear to God . Key Takeaways: ‘ISTG’ stands for “I Swear To God” and is commonly used in text messages and online chat. new search. The acronym ISTG is commonly used in text. ISTG can be used to express extreme seriousness, anger, or surprise, and is usually used outside of serious religious contexts. ISTG is short for "I swear to God. ISTG Meaning= Honesty or Certainty2. I Swear to God. " It is an internet acronym used in online chat to express frustration, surprise, or vehement assertion. ISTG is an acronym that stands for ‘I Swear To God. I swear to God. Pushin P is a popular phrase in the Bay Area and Texas that was popularized by Atlanta rapper Gunna. A. ISTG is simply an acronym that means I swear to God. Complaint Of Patient Data C. ILYSM means "I Love You So Much. More violent then just I Swear To God Learn what ISTG means in this quick and easy guide! Find out what the abbreviation stands for and how to use it in real life with this simple explanation. ONB is an abbreviation commonly used in texting, which stands for “Oh No Baby”. ISTG is commonly used in text messages and other social media conversations as a way to emphasize the truth or sincerity of a statement. Usually used after saying something ‘cool’. HMU meaning: hit me up. It’s an acronym that people use to express the seriousness of a situation or to emphasize that they are not joking. "I swear to. ABC means asking another player (or telling another player you’re ready) to make an offer, trade or perform a task in Roblox, such as roleplaying in a game. ISTJ types like to have clear goals and realistic deadlines, and to work with factual data to solve problems and monitor progress. Specifically, as internet usage is increasing daily,. ISTG stands for “I swear to God” in texts and on social media apps. What Does “ISTG” Stand For? “ISTG” is an acronym that stands for “I Swear to God. I just won the jackpot on the lottery ticket I bought yesterday, ISTFG! 5. Abbreviation of I Swear To Mother Fucking God. Use Cases & Examples. ISTG Meaning. Sub the Gamer security threat group. ”. ” How to understand Texting Abbreviations!! LOL and LMAO, SMH, FFS… and all the other ISTG Meaning A short video summarzing the most common. ISTG means I swear to God. LFG meaning: let's freaking go. What does 'ISTG' mean? "ISTG" stands for "I swear to God," an acronym usually used to express the seriousness of a situation or assure you're not joking when sharing a surprising fact. ISTG stands for I Swear To God. This should not be used in any formal setting, no matter how informal it may seem, via social media or text. What Does ISTG Mean in Texts or on Social Media? ISTG means “I swear to God” in text messages and on social media platforms like TikTok, Snapchat, Twitter, Instagram, and more. ISTG is often used in informal conversations, texting, and on social media platforms. By using “ISTG,” individuals can emphasize the sincerity or truthfulness of their statements, especially when sharing surprising facts or. Also, Check What Does SNM Mean In Texting? What Does ISTG Mean and How Is It Used in Real Context? The use of shortened phrases is a popular way to communicate in text messages and online conversations. Correct: ISTG Correct: istg Incorrect: iSTG Usage Use of the abbreviation can be found in the following places. Likewise, if you have ever seen the text code "ISTG" in texting and wondered what does ISTG mean in text. The ISTG definition includes a short acronym for a phrase that reads as ‘I Swear To God’. They prefer to work in traditional organisational environments, with people who take their. Pinky promise. Use ISTG to show you’re not joking about something, or to express annoyance or frustration with something (or someone). Chronic Obstructive Pulmonary Disease D. On the internet, there’s a lot of jargon and abbreviations that often confuse even the most seasoned internet user. This phrase is used to emphasize the truth of a statement or assertion. In summary, ISTG is an acronym widely used in informal online communication. ISTFG. This phrase is often used on social media while making public posts or in private chats. ISTG is a slang abbreviation used in online messaging and texting that means 'I swear to God. ISTG Meaning= Threat Use Cases & Examples. ”. Annoyance and Assurance Another ISTG How to Use ISTG One of the hottest internet acronyms among today's teenagers is ISTG. Overall, the acronym STG stands for “swear to God. ”. This abbreviation is typically used to express surprise, confusion, disbelief, or. It’s also like STG. They are there for each other on the good days and the bad days. I’m beyond shocked. Chronic Osteomyelitis Pathology Degree Embed Share an image of ISTFG » Click to view: Hearing impaired tip:. ” It is commonly used in text messaging and online chat to emphasize the truth or sincerity of a statement. Today, I'll walk you through what ISTG means in text and other text. It can be used to express emotions, surprise, or sudden kind of feelings. ”. ISTG is an acronym that means I swear to God. It can be used to convey extreme seriousness, exasperation, or surprise, and is usually used outside of a serious religious context. IMO meaning: in my opinion. Start the day smarter. -ISTG that was the best pizza ever! -I put your racket back in your duffle bag istg. ”. The slang abbreviation ISTG is frequently used as an interjection to express emotion or as an attestation of honesty. While it may seem like a phrase that you would use in casual conversation, it can be so much more than that. I swear to fucking god. OFC meaning: of course. Further Reading: What Does NFS Mean: Here Is All-inclusive Information You Need to Know. It's a close relative of the OMG (Oh My God). This initialism should be avoided in professional situations or in conversing with someone who is religious. HMU meaning: hit. I swear to f**king god (ISTFG) is an abbreviation used to express exasperation, disbelief, or agreement. This abbreviation is commonly used in informal conversations on various digital platforms, such as text messages,. The phrase “I swear to God” has been used for hundreds of years and is basically taken from the Old English word “swear” which means an oath. This initialism should be avoided in professional situations or in conversing with someone who is religious. More violent then just I Swear To GodISTG is an acronym that is short for “I swear to God”. It can also be an expression of surprise or. It's used express emotional sincerity or to seem intimidating. Alternatively, you might say ISTG to show exasperation or frustration at something someone is telling you. Since this is a very casual acronym, avoid using it in. This initialism should be avoided in professional situations or in conversing with someone who is religious. B) used to be the symbol of a person wearing sunglasses with a smile on his face. It can be used to convey sincerity, make promises, express annoyance, and more. What does ISTG mean? ISTG means “I Swear To God”. ”. It is typically used to show appreciation of an act of kindness by a loved one. ” It is often used to emphasise the truthfulness of a statement or convey the seriousness of a situation. "I swear to. The phrase “so what” is often used to express indifference or dismissiveness about the topic at hand. What Does ISTG Mean? In internet chatting and text messaging, the acronym “istg” actually means the phrase “I swear to God. ISTG Unveiled: Introduction to the Slang. A very dramatic phrase to be used only in exceptional circumstances. What does 'ISTG' mean? "ISTG" stands for "I swear to God," an acronym usually used to express the seriousness of a situation or assure you're not joking when sharing a surprising fact. 1 definitions of ISTG. What Does ISTG Mean? ISTG is an acronym that stands for “I Swear to God”. How Is ISTG Used? Use Cases & Examples. "ISTG" stands for "I swear to God," an acronym usually used to express the seriousness of a situation or assure you're. STG means different things to different people but its most common meaning is ‘Swear To God’. The phrase originated as a method for people to express a greater level of certainty about a statement they’re making in a conversation. Essentially, ISTG is a shortcut way of saying "I. ISTG is an acronym used in texting, which stands for “I swear to God. What Does ISTG Mean In Texting? ISTG is an acronym used for “I Swear To God. ISTG. While the presence of the word “God” might indicate some religious connotation, it’s not a religious term at all. Throughout the years, a variety of terms have arisen which make it easier to communicate online. You can use it to show your deep frustration, attest to the truth of something, or underline your beliefs. Testify. Swear to fucking god. What does 'ISTG' mean? "ISTG" stands for "I swear to God," an acronym usually used to express the seriousness of a situation or assure you're not joking when sharing a surprising fact. It could be used to define the frustration or annoyance you might have towards something or somebody. ”. " People use it in various places on the internet to tell someone to stop talking or as a gut reaction to something offensive or mean-spirited. What does 'ISTG' mean? "ISTG" stands for "I swear to God," an acronym usually used to express the seriousness of a situation or assure you're not joking when sharing a surprising fact. What Does “ISTG” Stand For? “ISTG” is an acronym that stands for “I Swear to God. Definition of ISTG in Slang/Internet Slang. For example: What does ISTG mean? ISTG is an acronym that means I swear to God. The abbreviation ISTG is widely used in text messaging and online chat with the meaning "I Swear To God. ”. ISTG is an internet slang initialism that conveys earnestness, annoyance, or surprise. ISTG is simply an acronym that means I swear to God. STFU is an acronym that means "shut the fuck up. Istfg Meaning Is: Istfg stands for “I Swear to Fucking God. ISTG can be used in various contexts and can have different implications depending on the conversation. It can also be used as an expression of sincerity, such as when a user is making a promise or expressing their. This acronym often highlights the sincerity, seriousness, or exasperation of the person using it. “ISTG” stands for “I swear to God,” and it’s commonly used in texting to express the seriousness of a situation or to assure someone that you’re not joking when. ISTG is an abbreviation commonly used in text messaging and online communication, particularly among younger generations. suggest new definition. Here’s what this multifaceted slang term means and how you may. The”I” is the person who is saying it, while”F” is an expletive “F” can be an exclamation point added to the expression. This phrase should only be used in casual conversation. Similar to “I Swear To Fucking God” istfg, in that it is an escalation of the original term “I Swear To God” istg. It is commonly employed in informal chats, videos, and posts to show seriousness and truthfulness. The “baby” part of the phrase isn’t a literal reference to a child, and. Avoid using this abbreviation in business or professional settings because it is so casual. By swearing to God, you make a sacred oath that most people respect more and therefore, are more. ISTG. Summary: · The added I at the beginning just refers to the person that is saying this, so ISTG means “I Swear To God”. "ISTG" stands for "I swear to God," an acronym usually used to express the seriousness of a situation or assure you're. Every TikTok user's FYP. Here's what this versatile slang term means and how you can use it in your messages and social media posts. It can often. . I Swear to God. It comes from the courtroom oath that traditionally said, “i swear by almighty god that the evidence i shall give shall be the truth, the whole truth, and nothing but the truth. ISTG Meaning What Does “ISTG” Stand For? If you’ve ever seen “ISTG” in a text message or on social media, you might be wondering what it means. In summary, ISTG is an acronym widely used in informal online communication. It is a stronger version of the phrase “I swear”. What does istg mean in text. The slang abbreviation ISTG is frequently used as an interjection to express emotion or as an attestation of honesty. ISTFG, I can’t believe she actually said that to me. It can be a powerful tool for self-motivation and encouragement. The phrase was later. STG: You can swear to god when you are frustrated or in exacerbation. This phrase is often used to express frustration or exasperation with a situation or to emphasize the sincerity of a statement. ”. TLDR meaning: too long; didn't read. ”. Well, fret not – I’m here to help unravel the mystery for you. Looking for online definition of ISTG or what ISTG stands for? ISTG is listed in the World's most authoritative dictionary of abbreviations and acronyms ISTG - What does ISTG stand for?Definition of the term. The slang abbreviation ISTG is frequently used as an interjection to express emotion or as an attestation of honesty. ISTG stands for: I Swear To God. One such popular slang on platforms like Snapchat is ‘ISTG’. "I swear to God" isn't just texting slang – it's used in everyday conversations to emphasize the truth at hand. Get all the news you need in your inbox each morning. In texting lingo, “istg” simply stands for “I Swear To God”. Person1: I'm so exhausted. Get all the news you need in your inbox each morning. Simply put,. It could be used to show how excited they are or to express. ISTG Meaning= Threat3. Origin of ISTG. Gunna explained that the ‘P’ stands for ‘player,’ although it can also stand for. " The abbreviation ILYSM is used with the meaning "I Love You So Much" as an expression of affection. In a different context, “sw” can also mean “someone who. OFC meaning: of course. Guarantee. What does GM mean in text from a guy?What does df mean in texting? In the realm of texting and digital messaging, “df” usually stands for “da fuq”, a slang and casual form of saying “the fuck”. As in, I swear that actually happened. Here’s our round-up of the latest Roblox slang. showing only Slang/Internet Slang definitions ( show all 7 definitions) Note: We have 1 other definition for ISTG in our Acronym Attic. It is an acronym used to emphasize a belief in or commitment to the truth of a statement. What Does Istg Mean? The acronym ISTG stands for “I swear to God. One of the main uses of ISTG is in text messages or chats, either between friends or in a. However, as with many other abbreviations meaning "I love you," it should not. “I swear to God” is a common phrase that people use to show that they are telling the truth or to express their sincerity. The abbreviation ISTG is widely used in text messaging and online chat with the meaning "I Swear To God. Further Reading: What Does NFS Mean: Here Is All-inclusive Information You Need to Know. 2006)Texting with friends is the best way to use this term. ILYSM can be used to express profound affection. It is used to emphasize a statement, a promise, or a claim, to express frustration, or to make a solemn vow. In contrast to standard text or audio messaging apps, Snapchat offers the unique ability to share fleeting live video messages that vanish as soon as they are. When someone doubts something you said, using ISTG is a way to make a solemn oath that most people respect and are more likely to believe. Meaning. Here's what "ISTG" means and how you can use it in your next text exchange. What Does ISTG Mean In Texting? Snapchat represents a real-time multimedia communication platform that takes a step beyond traditional messaging applications. Even though the phrase includes “God,” its meaning and uses aren’t considered religious. ISTFG. ISTG Meaning= Expression of Disbelief4.