Mithster 

A homosexual sex toy.

Jason: Go grab the Mithster. We are going to have some fun.

Mithster by moosetracks123 March 15, 2011

Mathster 

A master of math

Kelsey: Yo, Sam can you help me with this? Mr. Igloo assigned me one of Einstein’s Gravitational Equations and I don’t know where to start, it’s soo ridiculously hard!

Sam: No way in hell girl, too crazy difficult. Ask Marvin though. He’s a mathster!

Mathster by SammieBe10 December 6, 2011

Mathsterbate 

To require kleenex after mathematical gratification

Sophia helped Luke mathsterbate, then swallowed his cumulative frequency

Mathsterbate by Tom and Sarah July 28, 2008

Mathsterbation 

Working really hard on a sum just for the feeling you get once you have solved it.

Guy #1 "OMG what's Elliott doing with his math book?"
Guy #2 "Eww! he's Mathsterbating!"
Guy #1 "So that's why he's sweating so much! Have fun with your Mathsterbation, Freak!"

Mathsterbation by Disco Alpingu April 1, 2007

Mathsterbation 

Mathsterbation is the act of masturbating when a maths problem or assignment becomes too difficult and/or tedious to complete. It is often practised when the subject has lost all hope in completing his maths and can see no other option.

Friend 1: Hey, what did you get for question 4?

Friend 2: *fap* *fap* *fap* Go Away!

Friend 1: Mathsterbation already? That's weak...

Mathsterbation by highoffmathsfaps November 5, 2013

Mitosterbation 

Sex with a clone of oneself.

"We did not clone you for mitosterbation. At least get out of my office!"

Mitosterbation by Qman3000 August 17, 2008

Mathsterbate 

To require kleenex after mathematical gratification

Sophia helped Luke mathsterbate, then swallowed his cummulative frequency

Mathsterbate by Tom and Sarah May 30, 2006