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57.
brb
Sometimes followed by a gerund and an indefinite article in order to represent an action.
brb eating a beef casserole
by Travis February 19, 2005
 
1.
brb
Acronym for "be right back"
Hey, brb, g2g take a shit
 
2.
brb
"Be right back." No longer taken literally, people just say it when they are going to be gone for any amount of time, whether it be 20 seconds or 20 minutes.
Random person: brb
gs68: ok

<45 seconds later...>

gs68: Screw you! *leaves*

<2 hours later...>

Random person: back...hey were did dat fagot go
by gs68 December 21, 2004
 
3.
brb
Short for brb, which some people use literally, and are gone anywhere from 3 seconds to 5 minutes. Some people, however, use it much more loosely, and will be gone for hours on end, and usually come back making a truly shitty excuse for why they were gone so long. Used mainly in IM conversations.
1. Proper usage
Person #1: LOL
Person #2: I'll brb, gotta take a shit
Person #1: kk
---1 minute later---
Person #2: k back
Person #1: coo

2. Improper usage
Person #2: LOL
Person #1: brb
Person #2: alright
---15 minutes later---
Person #2: ...hello...?
---45 minutes later---
Person #2: you there!?
---4 hours later---
Person #1: I'm BAAAAACK!
Person #2: What were you doing? Scratching your genitals?
Person #1: NO! Never, I would never ignore you! I was... uh... painting my toenails?
Person #2: psssh *signs off*
by MrCuddles November 19, 2006
 
4.
brb
1.A shortened version to signify the message "Be Right Back."
2.A lame excuse to find out lamer acronyms for brb...
1. "Brb... " "Oh... okay"
2. "Burning Random Butterflies" "Oh... What the fuck?!"
by Alfonso G July 09, 2004
 
5.
BRB
Shortend way to say "Be Right Back" used lots in messengers or internet chat.
Bob: BRB, someone at the door
by Pheonix Rider July 05, 2006
 
6.
brb
brb: be right back
internet talk
hey,
good game
brb
by Shadow February 03, 2005
 
7.
brb
When someone doesn't feel like talking to you...
Me: Hey, what's up!?
Person: Nothing.
Me: Oh that's a shame!
...
Me: So what's new?
Person: Nothing much.
Me: Cool!
Person: brb
Me: Okay! :)

*Person signs off, never to return*
by Dr. Onuki December 22, 2007