1. 'be right back'- i'll be back soon. usually used in chatrooms or msn when the sender needs to take a huge dump but is too scared to say 'i need to do poos'.
-a polite way of letting the other person/people know that if they send messages you aren't going to respond for a bit.
-a good way to delay a conversation if you are sick of them
basil: hey wat you up to tonight?
sherryl: brb
basil: neato
by juvenileinclination November 21, 2006
To be gone for periods of time that could be from 5 minutes to 5 days.
Auto response from CDM99: BrB.
by Noodle June 02, 2004
1. Acronym for Be Right Back
2. Acronym for Bathroom Break
1. brb. mom's calling.
2. brb. i really need to pee.
by Olesya July 05, 2005
An expression used in AIM conversations. Though technically meaning "be right back", it is more commonly used as an excuse to leave a conversation with a person you don't want to talk to anymore.
catluver00003: so how many cats do you have??????
joexx: brb
by Arabella Quag May 18, 2008
What you type into an IM window when you don't want to talk to that person anymore. After typing, you simply don't talk to them anymore. Thus you are spared from their company and they are not offended.
"omg dn't u just luv star wars episode 2?!!1!?"
"ok lol!"
by Faggoty Ramone June 04, 2007
short for Be Right Back.. cyberspeak most likely originated on AOL
BRB i'm takin a crap
by big johnny July 09, 2002
The ultimate 3 letter phrase to avoid unwanted online conversations
Annoying person: Grrr i hate everything!

You: hehe yh

You: brb

Annoying person: OK

{close window}
by pretty-pissed December 17, 2007
Stands for "be right back". Used in IMing. Some people actually do come right back after saying brb. Most people don't come back after saying brb. Brb is used for an excuse (some of the time) so that the other will stop talking to them, but they won't have to go offline. Usually responded to by "kk" which means "kay, kool"
Girl: Um...that wasn't funny..at all.
Guy: HAHAHAHAHA...aha...aha.... SO yeah WHATS up? HAh, isn't that so FUNNY how IM captilizing SO randomly??
Girl: Sure...
Guy: IKR??
Girl (thinking that this guy has spazz issues): brb.
Guy: kk!!!
24 hours later...
Guy: you there...??
by ishouldbedoinghomeworkalready December 27, 2010

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