when a person explodes feces out of their anus in a continues stream.
i had mexican food last night and i became an extreme poopypumper.
by paulyconcrete January 23, 2010
1 more definition
The act of gay sex in the anus when the receiver is nearing the need to take a shit, where the dick will compact said shit into the receiver's anus.
Poopy Pumper away!
by Pumpdump May 09, 2011