Urban Dictionary: up the dumper

Up your poop shoot....usually a penis or penis shaped object

"Does that feel good Up the dumper?"

by David and pals December 18, 2004

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the term "up the dumper" means any person who is really dumb or gay and that they like dicks in the ass.

Robert likes to go up-the-dumper every night.

by beesnees November 22, 2007

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