Shusturbation

The act of masturbating, fully nude, in a public area or washroom, where any given person is apt to witness the lewd act.

hey dude, i just walked into the washroom to take a piss and some guy was in the middle of shusturbation in there!

Shusturbation by staceelewp April 16, 2009

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

Shitsturbation 

A simultaneous performance of shitting and masturbating, often done in public restrooms.

Kayla: Wow, I heard some really weird noises when I was using the restroom. Sounded like someone was really enjoying their dump...
Michael: They were probably undergoing Shitsturbation. It's like a self-performed blumpkin with your hands.

Shitsturbation by gofgirl983 December 17, 2011

Shatsturbation 

When you masturbate while shitting, so both explode at the same time.

After last nights shatsturbation, I thought I could die happy. It was pure bliss.

Shatsturbation by prosperoust February 4, 2009

Shiturbation 

The act of masturbation while taking a shit.

Taking shits are boring, so I decided try my hand shiturbation to make it more fun.

Shiturbation by hoovyoovy May 30, 2010

Sadsturbation 

masturbating while sad.

"My girlfriend broke up with me, so im left to sadsturbation."

Sadsturbation by a guy who is a guy February 18, 2015

sadsturbation 

Masturbation while in a state of emotional discord as a futile means to pacify pain.

You remember that weird, but kinda hot sadsturbation scene with Naomi Watts in Mulholland Drive?

sadsturbation by RoniNix September 18, 2011