rumpster

One whom has a very large rear end

Hey there Rumpster, get out of my way!

by Gavin LeDoux August 15, 2007

cum rumpster

Like a "cum dumpster", only instead of in the vadge you primarily prefer to take it in the butt.

Susanne, you like it in the butt so much. You are a real cum rumpster. And that's the truth!

by Thomas the Cum Elf July 12, 2010