Masterbolt 

1. Misspelling of "Masturbolt"
2. The giant lightning bolt in Percy Jackson

"Hey, I'm Stelio and I like to masterbolt. Also, I can't spell good."

Masterbolt by Spencer Ace February 18, 2018

Masterbathon 

a masterbathon is a day that you stay home from school "sick" so you can beat off so many times that you are dry and chaffed and can't walk so the next day you have to stay home and do it all over again

Mike: "Damn jimmy has been out of school all week"
Steve: "I konw he must be having a masterbathon"

Masterbathon by LifeguardSteve April 27, 2004

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

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

Manterboating

The placement of one's face, into the cleavage of a man's moobs, followed by the side-to-side shaking of the head accompanied with a motor-ing sound.

John made many trips to McDonalds on Friday; resulting in a hefty, yet delicious figure. Sarah was captivated by his rolls and decided manterboating his moobs at the pool the next day would be a hot idea.

Manterboating by D & L February 3, 2008

masterbate 

To masturbate like a master

I masterbated really well yesterday.

masterbate by ‮ekil skool ti tahw t'nsi sihT January 12, 2022

Obsessive masterbaition disorder

A disorder in which one has the urge to perform the act of masterbaition frequently.

Bob has an obsessive masterbaition disorder. He beat his meat 20 times in 1 day! Lets hope he didnt run out of tissues!

Obsessive masterbaition disorder by D-REAL-201 March 29, 2010