BRB

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 9, 2010

brb

Big Round Boobs

Wow look at her BRB's!!!

by RawrRawrRawr666 September 25, 2010

brb

Big Red Ball. used for little children who chat on the interweb to go outside and play jellyball with their other friends.

my friends are here,brb.

by teh reaper September 25, 2005

brb

Brb (bathroom break) Often used when person has to shit when instant messaging

Brb ive gotta use the crapper
ok dawg hurry that shiznit up

by Yourdaddy May 13, 2005

BRB

BRB has many different defenitions
Lik
1.Bathroom Break
2.Bitch Rite Back
3.Be Right Back
& mor

sentences
1.Chat Room
LUiS15:damn I gotta take da iLL dump.BRB.damn dat waz big.
MEGAN:eww...daz HOT.LOL.
2.Other Chat Room
ERiKA:Hei.Laura.Wat r yu duin
(5 MiN. Later)
ERiKA:BRB.HOE
3.Another Chat Room
MICHELLE:Hei Jordan.
JORDAN:Hei SEXii
MICHELLE:Oh.Hold on BRB.Mi mom is calling mi

by RAiSSA February 10, 2007

brb

code to play with ones self

i put a sign on my door when i am brbing

by Trixy. December 9, 2008

brb

stand for Bus Ride Boner.

you know, the ones you would get riding the bus to school because of all the vibrations?

Dude, i had the biggest brb today in front on Emily

by gunslinger19 October 28, 2008