Dumpsturbate

The act of shitting on a pillow and then enclosing your member in the pillow and thrusting wildly.

Geoff: "I had a cracking dumpsturbate last night."
Steve: "Sum the experience up in less than three words."
Geoff: "Spunky shitty disappointment."

by Wankyshitdemon March 02, 2014