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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Random Words:
1.
Equal in value, measure, force, effect, significance, etc
Something that is equivalent
Corresponding
The amount of chicken you just c..
1.
The act of ejaculating in your partner's eye and then kicking her in the shin, causing her to move around like a one-legged pirate...
