G.P.P.

Short for "Gas Propelled Poop"
A bowel-movement that is forced out the ass assisted by intestinal gas, requiring little to no effort to expel from the person shitting. Also called a G.A.P. or "Gas Assisted Poop"

"Well, it was a large dump, but it was a G.P.P., so I just sat back and let 'er rip."

by psoodonym August 07, 2008