Steam jackhammer

The sexual act of defecating on a subjects chest, followed by rapidly inserting a penis into the feces pile.

I gave her the steam jackhammer, she was ok with it until I finished her off with a dirty Sanchez.

by Sexual seductor February 12, 2013

Petite Jackhammer

When a petite girl riding you and you start lifting them up and down with extended arms.

I took this tiny girl home and we did the Petite Jackhammer.

by AgentPistol May 6, 2018