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1.
be right back
"brb"
hey c.mo, it's b.po... i'll be arby!
by b.po. June 11, 2004
 
2.
a humorous alternative to the popular abbreviation, "brb", meaning be right back. it's humor resides in the fact that it makes a reference to a popular restaurant while conveying a message
Person A: so what's up dawg
Person B: nm, i gotta go to the bathroom, be arby's
by Vijay Vishwanath December 18, 2008