Top Definition
Hater #1: Yo look at that fat muther fucker over there.
Hater #2: Which one?
Hater #1: That FRB with the front-butt
Hater #2: Fo Sho Nigga
by Con#1 June 24, 2012
F.R.B's stands for Free Range Boobies. Just like free range chickens the girls allow their boobs to be roaming freely under loose shirts.
Hay dude! Look at the major nipple reaction (MNR) on those F.R.B's. Must be the summer breeze.
by SupaMD June 26, 2007
Fully reppin Birmingham
Person 1: FRB all day

Person 2: FRB??

Person 1: Fully reppin Birmingham
by Pank12334 January 17, 2012
an acronym. frb stands for "for real bro". to be used in conjunction with "dbsb"
to be used in double agreement, as in
person 1: "that was a good fucking burrito"
person 2: "dbsb"
person 1: "frb"
by ruhl March 31, 2008
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