Definitions by DOTX

tump 

The combination of "tug" and "dump." The act of masturbation during a bowel movement.

The definition was conceived after a two-week long debate amongst writers about a term describing the masturbatory version of a blumpkin.

I thought rubbing one out was the ultimate in solitary man activities, but that was before my first tump.

If you really need to let off some stress, there's nothing like tumping.

tump by DOTX May 18, 2010