spaceturbation 

Masturbation in the weightless conditions of outer space.

Astronauts will engage in spaceturbation to relieve stress on long journeys and as emergency propellant by ejaculating in the opposite direction that they'd like to travel.

spaceturbation by Brother Joe May 29, 2017

spasturbation 

1. Masturbating in such a way that you inadvertantly hurt yourself.
2. Being caught masturbating in a very odd way that looks like you are a spastic.

oow, my eye! that was spasturbation!

Guy: Yeah, it was crazy seeing him spasturbating.

spasturbation by Ramz January 10, 2007

Spaceterbating 

Jerking off in a dark room wearing a fishbowl, thick gloves and scuba gear on a waterbed to give you the feeling of doing it in space.

I was so board last night after the power went off I just started spaceterbating.

Spaceterbating by Mr. Dobolina August 21, 2022