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The kernels of popcorn that fall into ones lap whilst eating popcorn.
Friend 1: Oh no, There is no more popcorn!
Friend 2: Eat the crotch pop, it's still good!
by crotchpop November 16, 2009
Waggling your loosely clothed man bits in a sexualized manner, intending to arouse the opposite sex but in actuality having the opposite effect.
Crotch pop: I stripped down to my g-string and crotch-popped the sorrority sisters but they were not impressed. At all.
by Susan Denime November 02, 2011