Much like a showdown, only between brothers. Two brothers link thumbs of the preferable hand and use their free hand to slap the back of the linked hand util one brother breaks the chain.
Example of a brodown:
Guy1:Hey, dude!
Guy2:What?
Guy1:Bob and Joe just had a browdown!
Guy2: Who won?!?
Guy1:Joe!
Guy2:Sweet!
Guy1:Hey, dude!
Guy2:What?
Guy1:Bob and Joe just had a browdown!
Guy2: Who won?!?
Guy1:Joe!
Guy2:Sweet!
by Namrhof June 04, 2009