flat sack

When you go to have sex with a guy and realize he has no balls.
I was 69'ing with this one guy and his flat sack hit me in the face.
by hen-peter October 23, 2011
mugGet the flat sackmug.

Flat sack

One who has no balls, a neutered dog. Just a sack with no balls.
Hey wade you have no balls you are a flat sack
by Cuevous May 28, 2016
mugGet the Flat sackmug.