Mittsturbate 

Verb. The act of partaking in masturbational activity using a baseball mitt. One must tenderize their preferred mitt and likewise toughen the area to be stimulated in order for successful mittsturbation to occur. After many sessions with one's mitt, the mitt will be considered "broken-in". Each session brings the mittsturbator closer to this desired state of mitt. This is an extremely advanced technique in terms of self stimulation, and should only be exercised when one considers himself (or her...self..) ready. Prerequisite: one must be a major league masturbator in order to commence in minor league mittsturbating.

John mittsturbated with his new Easton glove, which ultimately resulted in a pop-fly to center field.

Stanley asked his girlfriend to mittsturbate him. Unfortunately, she could not because she did not own a left-handed glove.

Mittsturbate by Neezplz January 9, 2010

mattsturbate 

Manual sexual gratification inflicted by your own hand while thinking of or watching someone with the name Matt.

Thinking about Matthew McConaughey playing his bongos naked made me so horny that I had to go into the bathroom and mattsturbate.

mattsturbate by Aggggggggggg January 10, 2011

mikesturbate

When you masturbate to a Michael Jackson Video, Song, Movie, or to thinking about Michael Jackson Sexually

I'm going to Mikesturbate to the in the closet music video.

mikesturbate by Lastchancebitch September 13, 2015

METSturbate 

The intense, pleasureful and often sexually satisfying experience that all Mets have during Baseball's offseason. During this period any move the Mets make is regarded as the "Perfect Fit" and Mets fans drool at the idea that the team might finish better than .500. This is, of course, never the case.

John: Hey Rick, do you want to go see a movie later?
Rick: I can't, Mike and I are going to METSturbate together over Michael Cuddyer.

METSturbate by Jayzee123 November 15, 2014

Mathsturbate 

To take pleasure in solving useless maths problems

Dude, Chris loves to mathsturbate!

Mathsturbate by Chrismiths February 5, 2015

mindsturbate 

To masturbate only using one's mind. Titillation comes from stimulation of the brain. Ejaculation often indicated by concentrated spit being ejected from the mouth.

"At the MENSA meeting, I couldn't keep myself mindsturbating. Yes, the ladies were that good."

mindsturbate by $$$ February 21, 2004

Minsturbate 

Original meaning: Mind-masturbate or masturbate with your imagination or mind.
Better used as: have to think so hard about something that it's almost like you have to masturbate with your mind.

Or simply use the short MM for mind-masturbate.

Bill: Dude, what's up, you look fuck-up!
Gabe: Man, the exam was so hard, I had to minsturbate the answer!

Minsturbate by benweiss9 September 10, 2010