Top definition
A dangerous object or being that is placed between the legs of a person unknowingly to them.

Term was originally used by Will Ferrel in Man VS Wild Will Ferrel Special.

Objects used to surprise sex a victim is NOT a crotch buster.
Person climbs down a tree, leg is over a lower branch(crotch buster). The person releases his grip expecting to land on his feet were the branch busts his crotch.
by TeddyBcool2000 July 31, 2009
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