Piston Cup

Peeing inside a girls mouth while getting a blowjob while driving

Dude i just gave my girlfriend a piston cup she is pissed

by steve zephlin July 1, 2011

Butt Piston

n: When one is fucking a girl in the ass and she flatuses and the penis is ejected with gas pressure.

Timmy was fucking this girl in the ass when she farted and turned his penis into a Butt Piston.

by Trees DT November 29, 2009

love piston

Penis

My love piston is hard.

by This Doeb June 8, 2016

Detroit Pistons

1. The best basketball team in the league right now. Their type of basketball is usually played in a rough and tough style with a pounding offense and a powerful defense. They play as a team and thats why they win games.

Person #1: Who's the best team in the league right now?
Person #2: The Detroit Pistons are because they play as a team and have an incredible defense.

by Sameer January 15, 2006

Detroit Piston

A Detriot Piston is when a male takes both of his hands, balls them into a fist and fists both the asshole and cunt of a female simultaneously. It is also optional to have another female in the background perfroming a rimjob on the male, but the extra female can be substituted for a dog. As the girl is orgasming, he must yell "DEEEE-TROOOOIT BASKETTTTBALLLLL!!!!!"

that Detroit Piston last night was the bomb.com

by RICK J/JD/SAMWISE March 31, 2010

meat piston

penis (when engaged in intercourse)

I was banging my meat piston in and out of her ass all night.

by big-k-special December 1, 2009

Piston Slap

In a internal combustion engine when the cylinder is oversized and the piston will rock side to side producing a knocking sound.

Chad's car has really bad pistion slap

by Nobis July 29, 2003