1 definition by BrotherRat2012

Top Definition
A member of a group of very different people who through trials and tribulations become more then just friends... they become brothers. Through a mutual name, these people take on a new identity of Brother Rats. This term can be used as means to ask a favor as well.
"BROTHER RAT" 'clap' 'clap'
"Hey Rat, go help your Brother Rat."
"Hey Brother Rat... do have $20?"
by BrotherRat2012 September 08, 2009

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