Mindsterbation 

When your mind is only focused on having sex with a hot celebrity and your girlfriend, to where absolutely nothing can break you from your sexual daydream.

Billy: Dude what's wrong with Hunter?

John: He's thinking about having a 3-way with Katy Perry and his girl Emily.

Billy: Classic case of Mindsterbation?

John: Yup.

Mindsterbation by A pro mindsterbator August 11, 2010

Mindsterbation 

derived from the term mind-fucking, where when mind fucking one self, one tends to mindsterbate, therefore the word directs towards the situation to when a person is fucking with ones on mind he tends to be mind-fucking

Joe: I have been fucking with my mind, with all this arithmetic and alcohol

Harry: Yeah dude I guess mindsterbation of a higher form

Mindsterbation by Maverickan September 5, 2012

criminal mindsturbating

Being so aroused by the characters, events, or interactions on Criminal Minds that your body brings itself to climax of its own accord.

Mom: Honey I heard shouts from your room last Wednesday at 9/8c.
Daughter: Oh don't worry mom I was just criminal mindsturbating.

criminal mindsturbating by katiedahmer February 22, 2011

Monsterbation 

1. The act of masturbating under another's bed/ in their closet then scaring them.

2. The act of masturbating to a monster character(s).

3. To dress up like a monster and then proceed to masturbate.

1. Charlie pranked his roommate Doug by way of monsterbation but felt embarrassed when he realized that he had scared Doug's girlfriend.

2. Charlie has a monster fetish and has been caught in the act of monsterbation.

3. After a night of failed attempts with women on halloween, Charlie decided monsterbation in his zombie costume was the only way he'd get some.

Monsterbation by m.fucci November 5, 2009

monsterbation 

The act of masturbating while going "RAAAAAAWWWRRR!" Like a monster/dinosaur

Max decided to experiment with monsterbation, but the noise made his mom come to his room, and discover what he was doing.

monsterbation by Maudlin La An April 1, 2010

Mindsterbating 

The act of masterbating without using any masterbatory aids such as pronography.

Friend 1- Why didnt you answer your phone?

Friend 2- Sorry, I was mindsterbating to the memory of those two chicks kissing at the party lastnight.

Friend 1- You're pathetic.

Mindsterbating by Jack Hambit April 2, 2011

mindsturbation 

To masturbate to someone using your mind, not your hands.

That girl in the subway was just asking for serious mindsturbation. Too bad I'm wearing sweatpants.

mindsturbation by orospu March 5, 2006