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A two-on-two competition in which the opposing competitors repetitively slap their dominant hands together as hard as they can. The first competitor to succumb to the pain first is declared the loser, while the other is victorious. The name is derived from the sport's original creator and most valuable player.
"Dude, you up for some brumslapping?"
"No, my hand is still bruised from brumslapping the shit out of daniel yesterday."
by brumslapper123 October 28, 2009
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