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4.
someone who is an idiot
you're a complete piston
by mandy April 02, 2004
8 50
 
1.
Basketball team that kicks ass
The Detroit Pistons are the greatest team around
by Josh123456789 March 25, 2007
199 72
 
2.
Double penetration sex, with one man fucking the girl in her vagina in and the other in the ass. They alternate thrusts to create a piston action, much like that of an engine.
"You take her in the ass, I'll take her in the pussy and we'll piston her"
by Color Rot January 06, 2009
28 18
 
3.
somebody who is sh** ugly
Eww you like him he a piston.
by Jada I December 12, 2006
8 43