Top definition
Dirty underwear, stepped out of and left crotch facing up on the floor.
Hey, your girlfriend left a pair of crotchups on the bathroom floor, they looked nasty, a real petri dish, you better throw those puppies out before they crawl away.

or..
Dirty Joe came by last night to use the shower, filthy bastard left a pair of crotchups on the floor, gross! he really needed a shower by the look of those things, they were radioactive.
by NZJohn December 18, 2011
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