What is Piston?
1.
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"
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2.
somebody who is sh** ugly
Eww you like him he a piston.
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3.
someone who is an idiot
you're a complete piston
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1.
The act of drinking/partaking in the use of mind altering substances to the state of inebriation where the person will usually have an e..
1.
phrase describing a male person that you extremely dislike
My boss is a real asshole. I wouldn't piss on him if he was on fire.
S..