Bumsack

A sack which hangs from the buttocks of millions of North Americans.

"Look at that gnarly bumsack."

by squackerdoodle August 23, 2011

bumsack

A very rare degenerative cancer-like disease in which the victims testicles are relocated to the rectum.

My nephew, Cornelius... He has a bumsack.

by The Bumsack Inspector October 18, 2018