"Shut yo bitch ass up." Used dismissively — usually jokingly — in 2025 TikTok comments when someone says something stupid, corny, or overly long.
"clueless" coming from the guy who thinks the usa isn't an empire lmao sybau 🖕🖕🖕
He will be … Photograph: Posed by model; Prostock-Studio/Getty Images/iStockphoto [View image in fullscreen](https://www.theguardian.com/technology/2026/apr/13/sybau-wyll-pmo-what-do-latest-teen-text-abbreviations-mea…
"Shut yo bitch ass up." Used dismissively — usually jokingly — in 2025 TikTok comments when someone says something stupid, corny, or overly long.
Someone: "Actually, water isn't wet." Reply: "SYBAU."
SYBAU means "Shut yo bitch ass up." Used dismissively — usually jokingly — in 2025 TikTok comments when someone says something stupid, corny, or overly long.. It's mostly used in casual online conversation. It's casual and generally safe with friends and online. It's standard online vocabulary; nothing inherently concerning about hearing it.
Slang is read by different audiences for very different reasons. The For parents view re-explains the term in plain, non-judgemental language so a caregiver can understand what their child means without needing the surrounding subculture. The For English learners view focuses on register (when it's safe to use), formal alternatives, and common mistakes — what a textbook won't teach you.
Add your own interpretation of "SYBAU".
The slang born in the last two years that's still fighting for legitimacy — clanker, demure, canon event, AI slop, aura farming. Half of these will stick; half will fade by next summer.
See all Emerging / Viral slang on Slangora.
Browse all slang words starting with S.
The activated state of someone who has fully run out of patience for nonsense and is now operating on zero tolerance — every sentence is clipped, every interaction carries the unspoken threat of a SYBAU, and they will absolutely deploy it if tested. Sybau mode isn't anger exactly; it's the icy calm before the sharp word. People in sybau mode are not processing your feelings, not engaging with your drama, and not pretending. They've done the math and they've decided: not today. Approach with caution.
(Internet slang, humorous, _, or, _, endearing) Someone acting in a foolish or ridiculous manner.
(North America, slang) : a strong affirmative response.
(Internet slang, texting, vulgar) : used to indicate confusion.
All Rights Reserved. #### [Guides](https://knowyourmeme.com/editorials/guides) # What Is The 'SYBAU' Meme?
SYBAU means "Shut yo bitch ass up." Used dismissively — usually jokingly — in 2025 TikTok comments when someone says something stupid, corny, or overly long.. It's mostly used in casual online conversation. It's casual and generally safe with friends and online. It's standard online vocabulary; nothing inherently concerning about hearing it.
"SYBAU" is slang. It means: "Shut yo bitch ass up." Used dismissively — usually jokingly — in 2025 TikTok comments when someone says something stupid, corny, or overly long.. Register: casual. Use it in: casual conversation and online posts. Avoid in: formal writing and professional emails.
“"clueless" coming from the guy who thinks the usa isn't an empire lmao sybau 🖕🖕🖕”
“He will be … Photograph: Posed by model; Prostock-Studio/Getty Images/iStockphoto [View image in fullscreen](https://www.theguardian.com/technology/2026/apr/13/sybau-wyll-pmo-what-do-latest-teen-text-abbreviations-mean#img-1) Confused?”
“All Rights Reserved. #### [Guides](https://knowyourmeme.com/editorials/guides) # What Is The 'SYBAU' Meme?”
“All Rights Reserved. # SYBAU Updated about a month ago by [Zach](https://knowyourmeme.com/users/zach--15).”
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