The act of masturbating in a group, such as in a circle jerk or in a game of limp biscuit.
When Timmy dropped his pants along with his friends for a round of circle jerk gangsturbation, they laughed out loud at how small his manliness was.

---------
Mark H. Proud Urban Dictionary Slang Author since February 2004.
by Mark H November 11, 2005
Get the gangsturbation mug.
A group of OG thugs jerking each other off.
The 5 o came in trying to bust a drug deal and they walked into the middle of gangsturbation.
by The Clitoris Crusher January 20, 2016
Get the gangsturbation mug.