gangsturbation 

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.

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Mark H. Proud Urban Dictionary Slang Author since February 2004.

gangsturbation by Mark H November 11, 2005

gangsturbation 

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.

gangsturbation by The Clitoris Crusher May 1, 2016

Gasturbation 

The act of shaking the gas pump to get those last few precious drops of gas out of the hose that you paid for and you deserve.

Man, that guys a cheap bastard, he's been shaking that thing for damn near a minute now, that's some serious gasturbation

Gasturbation by TheFitz19 June 25, 2009

Gaysturbation

When you have sex with a clone of yourself.

Person 1: If you have sex with a clone of yourself, is that gay or masturbation?
Person 2: Nah fam, It's gaysturbation.

Gaysturbation by ProfessorPancakes June 1, 2018

Hangsturbation 

The excitation of one's own genital organs while simultaneously asphyxiating oneself usually to the point of orgasm.

Late at night, Officer Billy loves hangsturbating in his cop vehicle while checking for drivers going over the speed limit.

Hangsturbation by Dr. Dorifto August 31, 2005

Angsturbation. 

A masturbation session that follows an episode of angst.

Dude one: "Oh man, just had a huge fight with my girlfriend."
Dude two: "You know what'll relieve that?"
Dude one: "What, man?"
Dude two: "Some good old angsturbation."

Other examples: I can't believe that douchebag fired me. That's gonna make for some good angsturbation.

Angsturbation. by pumpkin soup February 5, 2015

gansturbation

When a group of gangsters, get together and jack off collectivly in a group

They had fun at the Gansturbation last night after gang banging

gansturbation by blahblahblah42 July 15, 2016