Mastorium 

A synthesis of masturbate and auditorium. Refers specifically to a young man's messy room - his headquarters. Significant masturbatory activities occur within the mastorium; a cum dungeon.

Kun Snr: "Hi Kun, what are you up to?"

Middle Kun: "Just cleaning up my mastorium!"

Mastorium by kooneyman July 5, 2010

mastonism 

The belief that furries are the worst of the worst and should be exterminated like the jews

Do you believe in MASTONISM? No, you must be a fucking furry

mastonism by PMcPerson November 27, 2017

MasterDumping

The act of jacking off while taking a shit

he's probally Masterdumping that sick bastard

MasterDumping by West G. July 2, 2011

Masterism 

The art of mastering everything.

I am awesome because I am the master of masterism.

Masterism by nickvet419 March 12, 2010

masturhumping 

When you hump a pillow, bed, woman, etc., and you put your hand by your penis so that as you hump up and down, your hand rubs against your penis, giving you the sensation of masturbating while you are humping.

I was so horny after watching the shake-weight commercial that I decided to have a quick masturhumping session.

masturhumping by Masturhumper December 29, 2010

Magorium logic 

A paradoxical statement that seems to have a flaw in its logic, yet none can be found. Term refers to the film "Mr. Magorium's Wonder Emporium," where this logic is used frequently.

In some cases, Magorium logic may appear somewhat circular in nature, with the logic pattern looping back upon itself.

ANNE: "You can't know something you don't know because you don't know it."

JASON: "That's an example of Magorium logic if I ever heard one."

Magorium logic by JasonMc92 January 20, 2011

mysterium 

a confusing and impossible to understand situation or place. Very complex. Only nerdy niggas will have a chance to understand a mysterium. Everybody else don't even try, your head will explode.

James: "Yo Will, girls are a mysterium. I'm trying to figure out why they crazy as hell"
Will: "You better stop man before your head explodes. Shit's crazy"

mysterium by Smart Nigga 18 August 22, 2008