BRB

(In SMS-language:) be right back
Found on http://www.mantex.co.uk/samples/texting.htm

BRB

be right back
Found on http://www.archivemag.co.uk/

BRB

Brazilian Rainbow Boa
Found on http://www.kingsnake.com/articles/Glossary.html

BRB

Big Red Book - The Warhammer rule book
Found on http://www.roundtable-bretonnia.org/index.php?option=com_rd_glossary&task=s

BRB

Be Right Back
Found on http://www.encyclo.co.uk/local/21662

BRB

[Residuary] BRB (Residuary) Limited (BRBR) was the successor to the British Railways Board. It was created in 2001 as a private company limited by shares, with 100% of the issued share capital owned by the Secretary of State for Transport. As part of the Public Bodies Act 2011, the company was abolished in 2013. ==History== Starting in 1994...
Found on http://en.wikipedia.org/wiki/BRB_(Residuary)_Limited

Brb

This is all about the dust bowl of 1935 in dodge city, Kansas it was the BIGGEST dust storm of the WHOLE 1930`s century. ...
Found on http://en.wikipedia.org/wiki/Brb

brb

be right back
Found on http://www.noslang.com/dictionary/b/

BRB

be right back
Found on http://www.lagkills.com/gaming-acronyms.htm

BRB

Bathroom break
Found on http://www.chatslang.com/terms/online_gaming

BRB

Short for `be right back` (usually used in chats and on an instant messenger service).
Found on http://www.ruf.rice.edu/~kemmer/Words04/usage/slang_internet.html
No exact match found