n. adj. A greasy piston is a person that indulges in activity of the homosexual persuasion. Greasy coming from the chocolatey brown color of shit, and piston from the penis and it's motion in and out of another man's rectum.
by Maxieboy July 17, 2003
by m_step March 16, 2021
by Thot Terminater November 17, 2017
a long hard metal pole that i rammed in and out of an explosion chamber, used too create energgy annd poduces a loud sound
by wastedcoworgasm February 21, 2024
by slipperyslazo November 19, 2021
When she bounces on your little weenie while you thrust up.
by Big Richard 114 May 12, 2017
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