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A poopy diaper is a poopy, terrible, unfortunate, messy and sloppy, etc. action, situation, and or performance.
Justin shanked four balls into the pond on 18 putting the nail in the coffin on a very poopy diaper round.
by Larry Bounds March 11, 2010
12 3
When a man ejaculates into his own mouth and then cum swaps with a gay kid that is a freshman in high school
Did you see that kid named Bruce walk through the hall? Last night, he went poopy diapers on a kid named Zach. Damn that Nigga is gay!
by Poopy Diapers September 24, 2008
9 10