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1 definition by Palomides

 
1.
dab
A term used in bouldering (rock-climbing on boulders) to denote hitting the floor or a friend with a body part while climbing. A dab can allow a climber to continue instead of falling off, so is regarded as invalidating an ascent (or "send")
Dab!!!111 You totally dabbed you dabbing dabber!! INVALID!
by Palomides June 15, 2006