SYBAU
Texting & Internet Slang abbreviation · Gen Z Slang
| Stands for | Shut your b**** a** up |
|---|---|
| Categories | Texting & Internet Slang |
SYBAU stands for Shut your b**** a** up, a Gen Z slang abbreviation.
Rude command telling someone to stop talking, used jokingly among friends or as a genuine insult in arguments. It trended on TikTok and in comment sections in 2025.
Example: Sybau, you've been talking about your ex for an hour straight.
Usage notes
Contains strong profanity in its full form, which many younger users type without spelling out. Often used humorously between close friends, but it reads as hostile from a stranger. Never appropriate in professional, school or family settings.