A dumperkin is when you are expecting to drop a fully loaded dump but actually only pop out a couple walnuts instead.
Roommate 1: Dude after that bender last night I had to shit so bad this morning.

Roommate 2: Aww man, what the hell, I hope you didn't destroy the bathroom.

Roommate 1: Don't sweat it bro, turned out to only be a dumperkin
by Magichat9 May 18, 2014
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