Bathturbation 

The act of masturbating in the shower. It's much harder for someone to be caught doing this, but they'll probably end up using up all of the hot water.

Example 1: Bob has been in the shower for 2 hours now. What's taking him so long? Is he bathurbating?

Example 2: Bathturbation is much easier than normal masturbation. No one will ever catch you in the act!

Bathturbation by JohnMaddenFootball May 11, 2014

Bassturbation 

Putting ones scrote on a large bass speaking whilst listening to a remix of any Adele song until you ejaculate.

Last night I bassturbated so hard it measured 9.7 on the richter scale.

Gerald - 'Last night, i had to bury my pet dog Gravel'
The Boss - 'What happened, Gezza?'
Gerald - 'Bassturbation'
The Boss - 'I lost my infant to that, no wait.... i stabbed him in the face, never mind'

Bassturbation by TWC.TV March 16, 2017

bansturbation 

A fusion of “ban” and the term for sexual self pleasure.

This refers to the public abuse of the rights citizens, as things that some people simply disapprove of are made illegal, plus the near-sexual frisson of pleasure gained by those who pass such laws.

Lifestyle engineers want to ban everything we enjoy, they get their kicks from bansturbation.

bansturbation by Narkybeast September 15, 2010

Mathturbation 

(n.) The act of deriving equations just for the sake of deriving them, at no apparent gain to the student.
In verb form, to mathturbate is to perform such menial mathematical labor.
mathturbatory: characterized by excessive mathturbation

"The professor spent three hours deriving the equation on the board because he thought it would help us understand the concept better; really, however, he just confused us with his senseless mathturbation."

"The homework problem required hours of mathturbation, with the end result being a simple identity that appears in the index of every text."

Mathturbation by D. S. A. September 22, 2007

Mathturbation 

Thinking about Math at an irrelevant time. Most often done first thing in the morning, late at night, or occasionally while on the toilet.

Carter was mathturbating in the shower early in the morning.

When Hannah was in History, she was so bored that she used mathturbation to relieve her stress.

After another lonely night, Justin mathturbated before going to sleep and was able to escape into a world of reals and dreams.

Mathturbation by Mathturbator34 October 23, 2012

Bathturbating

Because saying "masturbate in the bath" is just too damn long :.P

Sally: "Ah, there's no better way to relax before bed than putting on some soft music, a little scented candles and a little bathturbating."

Jane: "You really need to get laid more."

Bathturbating by CactusHeart December 30, 2011

Mathturbation 

The math you do as a republican to make yourself feel better.

Mathturbation: What Megyn Kelly told Karl Rove when Fox News Called the race for Obama. (see youtube video "Math you do as a republican")

"Dude, did you see Karl Rove last night totally Mathturbate himself last night with his white board right before President Obama was re-elected."

"Yeah, He was really going at it with his magical white board"

Mathturbation by FactsMatter(except FAUX NEWS) November 15, 2012