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an abbrievation of sucks to be you. this is used when someone else has an fml moment and you really dont feel sorry for them. you actually find it funny, and are glad that it didnt happen to you. stbthem or stbhim/her can also be used.
bob: today i asked a girl out and she rejected me and then i ran into a locker and broke my nose.
jimmy: stbu!! hahahahha

jimmy and bob drive by the school band practicing in the pouring rain.
jimmy/bob: stbthem!
stbu by cassiesbarking August 4, 2009
Related Words
"Set That Bitch UP" A term used by frustrated sales and marketing groups who get alot of denials. Pronounced (Stah-booh)
Edgar: Dang, Mr. Sanderphuss in CC is killing me. Just STBU already.

Wilheim: Yeah man, STBU
STBU by Manjadahni April 4, 2008
Girl 1: I fell over today in front of my ex
Girl 2: ahahaha STBU
STBU by Divvy Langers February 9, 2010
Sorry To Bother You
using it as a joke when you know you're not bothering them

Heath GM Nihad
Nihad STBU Heath GM to you to
STBU by nihadw00t June 21, 2019
An Acronym for "Shake that belly unc"

Useful for when trolling your friends or someone on Instagram live
"Any n***a say some weird shit I'm off...'
"Shake that Belly Unc (Stbu)"
"ok- (cuts off the stream)"

- Cochise 2023
Stbu by Bababoi808 July 15, 2025
More from Urban Dictionary
British slang for a scientist or technical expert, esp . when the speaker is not certain of the expert’s specific field of study. Not necessarily derogatory, but typically used by persons without a technical background. In the US, the equivalent would be “egghead”, “squint”, or “geek.”

Origin of the word is unknown. Started sometime in World War 2. Given the typical evolution of British slang, could easily have started because what these experts did was confusing or “baffling” to the common person.
According to the boffins downstairs, the murderer used a serrated blade.
Boffin by Agnon February 11, 2023
Word of the Day on October 3, 2026
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