monsterbator 

n.

1. one who monsterbates
2. a monster masturbating
3. a huge artificial penis
4. masturbation of a large penis
5. a huge masturbating monster

If Bigfoot exists, then he's a monsterbator.

monsterbator by camp lickalotta March 14, 2008

Monsterbate 

1. To masturbate in an intense and/or earth-shattering manner.

2. The form of masturbation someone monsterous in personality or appearance exclusively utilizes.

3. An actual monster's masturbation.

"He doesn't simply masturbate to Angelina Jolie, he MONSTERbates to her."

"The Undertaker is only capable of monsterbation - masturbation for him is out of the question."

"Cookie Monster has been known to monsterbate off the SCENT of a cookie alone."

Monsterbate by Jeanette M. April 2, 2008

masterbatorium 

A confined space used for masterbation. A masterbatorium will sometimes have pictures of naked bodies hanging on the walls for visual stimulation. Those little rooms in the porn store that you stick quarters in, those are masterbatoriums. A masterbatorium will generally smell of lotion or crusted semen. You get a feeling of filth when you walk into a masterbatorium.

The guy who lived below me had his room completely wallpapered with centerfolds of Playboy Playmates, this was obviosly a masterbatorium.

masterbatorium by Russ Buss April 8, 2006

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

Monsterbating 

to pleasure yourself while drinking a Monster energy drink.

Igor seems hyper and distracted, he must be monsterbating.

Monsterbating by Tayvi February 4, 2010

Monsterbating 

When you jerk off so hard that its scary but it feels so good that you wanna squirt EVERYWHERE!

To being jerked off really hard and vigorously.

Honey! Why are you jerking off so hardddd!

Oh don't worry honey, I'm only monsterbating it doesn't hurt.

Monsterbating by Kajur April 2, 2013