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

Monsterbation 

Monsterbation is the act in which you touch yourself or masturbate to ugly people as popularised by the American Deathcore band The Irish Front in the 2008 release of Universe featuring the song monsterbation.

Touching yourself to ugly girls with ugly faces, oh honey that’s what we call monsterbation

Monsterbation by DeathcoreMadeMeDoIt July 12, 2021

monsterbation 

when one engages in the touching of oneself at a time when one's significant other is right beside them.

the monster replaces master because one who subjects themselves to such acts are obviously dirty pigs.

olive engages in monsterbation 24/7, even when he has just 69ed with the finest bitch, hence he is the ultimate perve who no one likes.

monsterbation by Arntnok February 2, 2008

Monsterbation 

Where you jerk off under someone's bed to scare them. Upon finishing, you shout "HAPPY HALLOWEEN" in your scariest voice.

"Hey, Jimmy, what did you get up to for Halloween. Costume party?"
"No, I just went on a monsterbation spree. Scared the little bastards senseless. It was both a trick and a treat."
"This friendship is over."

Monsterbation by Bruno Strongarm April 23, 2014

Management Masterbation 

When Management does something purely for their gratification that will produce nothing.

Team building exersizes, employee surveys are just a few examples of management masterbation.

Management Masterbation by jayray59 May 6, 2010

mysterbation

Hitting your own profile and reading your own comments or blogs.

Really stupid example: when you comment on your own blogs, you are using mysterbation.

mysterbation by Doug Narby March 2, 2007