Masterbeta 

A person who spends an un-healthy amount of time playing a beta (trial) version of a game, usually with the hopes it will make them cool/interesting.

Guy 1: Hey how's the Gears of War Beta?

Guy 2: Awesome! I'm already ranked 54 in the world for deathmatches!

Guy1: Fucking Masterbeta.

Person: You hear the Phantasy Star beta got shut down?

Other Person: I know! It's terrible! I would play that shit all the time with my friends! We kicked the D-Ragon's ass all the time!

Person: You guys are fucking Masterbeta's.

Masterbeta by Steve&Martia May 10, 2011

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

Masterbeast 

To masterbeast is:

1) To play alone in a multiplayer game by yourself because your friends don't want to play with you.

or

2) To be a badass when the rest of your team is down and out.

1) Yesterday I was masterbeasting because you guys didn't want to play with me.

2) Damn all you fools suck, I had to masterbeast for us to get through the last round.

Masterbeast by THE ON3 November 2, 2011

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

mastabeta 

The best place to hang out on the intarweb for spamming, pr0n, acting st00pid in general and to get BAND!!!1112 and plus we're a bazillion times better better than teh c0ck-sucking, gay orgy-loving fagg0ts over at GenGay

Mastabeta r0x0rs j00r b0x0rs!

mastabeta by Gen[G]ay sucks hard January 30, 2004

masterbate 

To masturbate like a master

I masterbated really well yesterday.

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