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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
The word 'flag' as pronounced by people with thick Belfast accents. The term is a perfect encapsulation of the disproportionate and overblown reaction to the removal of the Union Jack (as in 'de fleg') from above City Hall in Belfast. Where previously it had flown for 365 days per year, it is now flown on 17 designated days of the year - in line with many other British cities.

The event caused a portion of the Protestant community ('fleggers') to make international pricks of themselves as they proceeded to wreck the fucking place, claiming it was another erosion of a 'British' identity they perceive to have been under attack since the horrifying spectre of equality reared its head in Northern Ireland.

The word 'fleg' - and indeed 'fleggers' - fittingly describes a section of humanity unconcerned with knowledge, reality or the vagaries of the English language. Like America's tea-baggers they are ruled by instinct, fear and paranoia with a side dish of rampant bigotry and startling ignorance of the world around them.
"Wat de fuck like! The taigs got de fleg took down! Let's wreck de fuckin place! No surrender!"

"De fleg has been took down! Before ye know it there'll be a united Ireland! Attack Short Strand! God Save The Queen!"
Fleg by OnionFleg August 9, 2013
Word of the Day on July 18, 2026