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"
'Net chat slang, or "netiquette" for "be right back." The term does not, however, actually mean, "be right back." It is a segue euphemism for "get lost," "f*ck off," "I'm not interested in you," "never in a million years, you troll," etc. Used mainly in dating or sexually oriented chat.
An expression used in IM (MSN, Facebook...etc) 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.
Derek: Hi what's up?
Aliesha: Nothing much really...kinda bored...and I'll BRB...
Hours later:
Derek: I thought you said you would BRB...you lied!
Aliesha: No...i didn't lie
Derek: Then why did you comment on Facebook 30 mins ago??? You were still at the computer...you didn't want to talk to me...i see how it is
brb is an acronym for Be Right Back.
People use it in online games and chatrooms mainly, teenagers use it when they really gotta jerk off, while younger kids use it when they must eat or they parents yell at them.
randomguy: uhm, brb!
randomgirl: leaving me? :<
randomguy: juts gon.nannfnps
randomgirl: what?
*Thypical guys when they write with one hand and having some fun with the other*