A lame excuse for a definition used on Urban Dictionary for people who talk about how they need to take a shit, or how their friends leave them while online while saying they'll be back. Here's alittle tip, fuckers, people who don't already know what the acronym stands for should be burned at the stake. It's the easiest one ever. Also, if your friends get offline by seeing they'll be back, then they are not your friends, they are just retards, and most likely, at school, if they do go to school with you and you didn't meet you in a chat room and are most likely pedifiles, then they are going to say something like "I got caught up in something else," which is just underbreath speak for, "I don't like you, don't you get it you retarded monkey? I mean, you never gave me Respect Knuckles once." (I love shameless plugs). Oh, to all you other morons, nobody wants to hear about how you have to take a shit.
"And lo, the Great Omega Master hath ingested that of a bean burito and is as noisy as ever. Thus, the great foe the beans have made, for they have forsaken me with the urge to feel what is coming out of thine anus. Alas, I must BRB to once again take on my greatest nemesis, the Crapier. This will take an obscenely long time." *Signs Offline*-The Omega Master
by -The Omega Master February 08, 2005
Black retarded babies ,A taboo subject not to be discussed
Did you hear what happened on the news today ?"Oh BRB " and the conversation ended
by soulwreaver January 05, 2015
Short for "be right back," aka "I don't want to fucking speak with you" which people usually say when someone they dislike start chatting with them and they want to get rid of this annoying person.
"Haaai, how r u 2day guuurlfrend?"

-"Hey I'm good, sorry I'll brb."
by KinkyxBitchx September 13, 2012
Buckling-Restrained Brace, or a structural brace that is part of a system to keep a building up in an earthquake.
The architect likes the look of the BRB brace in the window.
by ngnr February 09, 2010
BUMPY ROAD BONER
AS YOU DRIVE DOWN A BUMPY ROAD YOU START TO GET SOME RUBBING ACTION THUS CREATING A BRB. "MAN THIS ROAD SURE IS BUMPY IM GETTING A BRB". "THIS ROAD IS BUMPY NO BRB'S BACK THERE"
by BONHAM116 January 05, 2010
i'll be right back keep waiting since i won't be gone for long
chill out brb (be right back) in a second
by samkes July 02, 2007
Bath Room Break
or
Be Right Back
Morgan223: hey nice weather we are having

Sidney445: Yeah i agree with you

Morgan223: brb

Sidney445: okay
by Entering_Kip August 18, 2006
Big Round Boobs
Wow look at her BRB's!!!
by RawrRawrRawr666 September 24, 2010
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