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The Full List of Snapchat Slang Terms
Each entry below gives the abbreviation, what it stands for, a plain-English definition, and a short example of how it's actually used in a chat or caption.
- SMO — Send Me One
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SMO means “Send Me One” — a request for the other person to send a snap back, often to restart or keep a streak going.
Example: "She replied “smo!!” the second my streak snap landed."
- NRS — No Reason Snap
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NRS stands for “No Reason Snap” — a random snap sent with no specific purpose, just to say hello and keep in touch.
Example: "Sent him an nrs of my coffee — no big deal, just checking in."
- SB — Snapback
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SB means “Snapback” — replying to a snap, especially to keep an active streak with someone alive.
Example: "Don't forget to sb before midnight or the streak dies."
- STA — Sorry to Ask
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STA stands for “Sorry to Ask” — a polite prefix used before asking a favour or question that might feel like an imposition.
Example: "sta but can I copy your notes from today?"
- GTS — Going to Sleep
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GTS means “Going to Sleep” — a quick sign-off snap sent before someone logs off for the night.
Example: "gts now, streak's already sent — night!"
- WYD — What You Doing
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WYD means “What You Doing” — a casual opener asking what someone is up to right now.
Example: "wyd tonight, wanna facetime after?"
- SFS — Shoutout for Shoutout
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SFS stands for “Shoutout for Shoutout” — a trade where two accounts promote each other to grow their following.
Example: "Doing sfs today, snap me your username to be featured."
- HMU — Hit Me Up
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HMU means “Hit Me Up” — an invitation for someone to message, snap, or call you later.
Example: "hmu when you're free, need to tell you something."
- ONG — On God
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ONG means “On God” — used to swear that a statement is completely true, similar to “I promise.”
Example: "That test was so hard ong."
- FS — For Sure
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FS stands for “For Sure” — a quick way to agree with or confirm what someone just said.
Example: "Still on for tonight? fs, see you at 7."
- BSF — Best Snap Friend
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BSF means “Best Snap Friend” — someone who ranks at or near the top of a person's Snapchat Best Friends list.
Example: "She's been my bsf since we started snapping every day."
- PMO — Pisses Me Off
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PMO stands for “Pisses Me Off” — used to express frustration or annoyance about something that just happened.
Example: "He left me on read all day, pmo."
- WTV — Whatever
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WTV is shorthand for “Whatever” — signalling indifference, or that something isn't worth arguing about.
Example: "wtv, doesn't matter to me either way."
- OMM — On My Mom
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OMM means “On My Mom” — an intensified way of swearing something is true, stronger than “on god.”
Example: "omm I didn't even see your snap till now."
- ICL — I Can't Lie
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ICL stands for “I Can't Lie” — used before admitting something honestly, even if it's a little embarrassing.
Example: "icl I rewatched your story like four times."
Why Snapchat Slang Keeps Changing
Snapchat's chat interface is built for speed — short captions, disappearing messages, and a streak system that rewards sending something every day. That combination pushes users toward shorthand: typing "smo" is faster than typing "can you send me a snap back," and it still gets the point across instantly to anyone who already knows the term. Because most of this slang spreads through group chats and TikTok explainer videos rather than any official Snapchat glossary, definitions can drift slightly between friend groups, which is why a term like BSF sometimes gets read as "best snap friend" and other times as a general "best friend" abbreviation carried over from texting. Snapchat also uses visual indicators alongside text slang — for example, the green dot next to a friend's name shows real-time online status, which is a completely separate signal from any abbreviation.
A useful way to think about it: terms like SB, SMO and NRS exist specifically because of the mechanics behind Snapchat's Best Friends ranking and the Friend Solar System planets — the more two-way snaps you exchange with someone, the higher they climb, so a whole vocabulary has formed around requesting, acknowledging and maintaining that exchange. Terms like ONG, FS, OMM and ICL, on the other hand, are general conversational slang that happens to show up constantly in Snapchat captions but isn't unique to the app.
Slang, Streaks and the Follower/Friend Split
It's worth separating this glossary from a related but different question: who these terms actually get sent to. Abbreviations like SMO, SB and BSF are almost always exchanged between mutual friends — the relationship that drives streaks and the Best Friends list. They rarely apply to one-way followers on a public profile, since a follower who isn't also a friend can't send or receive private snaps in the first place. If you're trying to work out why a term like "sb" doesn't make sense in the context of someone who only follows your public Stories, that's the reason — the slang belongs to the private, mutual-friend layer of the app, not the public, one-way layer.
Understanding the vocabulary also helps make sense of why some terms cluster around specific moments: SMO and SB show up most often right before a streak's daily deadline, GTS shows up at the end of a conversation, and STA shows up whenever someone is about to ask for a favour. None of these words change how Snapchat's underlying systems work — no abbreviation affects your Snapchat score, your streak count, or your position on someone's Best Friends list. They're purely conversational shorthand layered on top of features that already existed.