1 definition by Humpmaster

hump up

The act of shitting where the back is fully arched forward in the manner of a dog.

V. I just humped up all over the floor.
Don't go in there he's humping up!
She' going to hump up all over his chest.
N. Did you smell that hump up? It was awful.
I just stepped in hump up.

by Humpmaster November 13, 2005