by Mackenzie1606 June 9, 2024

A group sex act in which three people who possess phalluses simultaneously penetrate the orifices of one other person.
Three members of the college football team showed the Captain of the cheer leading squad how a three piston engine worked.
by PsickoAlpha March 14, 2014

A term used to describe when someone is getting their dick sucked or rode by a person while they’re driving a vehicle.
“Hey, do you mind if I give you a blowjob while driving?” she said. “Oh, you mean a Pittsburgh Piston?” I responded.
“Dude, get this. She rode my dick WHILE I was driving! Ain’t that crazy?”
“Damn! That Pittsburgh Piston must’ve felt nice…”
“Dude, get this. She rode my dick WHILE I was driving! Ain’t that crazy?”
“Damn! That Pittsburgh Piston must’ve felt nice…”
by Darth826 January 27, 2025

something with pistions(also known as stmg with pistons)is the art of useing pistions to steal illigal/unobtanible blocks form a minecraft map
by godstone July 14, 2023

piss-ton-ing
(verb)
Rapid back and forth motion contained within the ass (closed first or otherwise) without removing the hand.
(see also: Fisting)
(verb)
Rapid back and forth motion contained within the ass (closed first or otherwise) without removing the hand.
(see also: Fisting)
Him: So, how do you like to get fisted?
Me: Pistoning is my favourite! Piston my hole so fast until I cum without jerking off.
Me: Pistoning is my favourite! Piston my hole so fast until I cum without jerking off.
by PureTea January 9, 2023

Can only be done in cold climates. When you are having sex or masturbating and when you are about to bust you run outside and stick your penis the snow.
by Hduwbdwkcn April 15, 2019

When a sexy brunette gives you an amazing blowjob until you cum in her mouth, she then swallows it and licks her lips
by Barbay February 21, 2017
