Getting what you deserve. Usually in some form of punishment, especially a beating.
Dad: Alright boy, come get your comeupins.
Boy: Please don't thrash me again, Dad!

Bill: I hear that Jimmy stole your stereo.
Jeff: Yeah he did, that son of a bitch! When I find him, he'll be gettin' his comeupins!

by SmashCrab March 13, 2008
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A word used to describe someone who takes explicit photographs of themselves, typically in strange poses or having odd expressions.
Vanessa is going to get her comeupins.
by I love Juice December 17, 2006
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