Masterboy

A german eurodance group very popular in 90's in Europe, Oceania and South America.

Masterboy marks the end of good dance music. All things released after 1995 of this genre sucks afterall.

by Phair May 21, 2006

mastectomy

Removal of one or both a females breast due to breast cancer.

Emily: omg, why doesn't Sandra have any tits?? freak!
Morgan: Emily, stop being a bitch! She has breast cancer. She needed to have mastectomy surgery to remove her tits.
Emily: ohh, sorry Sandra. =/

by crazyyyyyychic November 25, 2007

masterbooping

When you take a dump and jerk off at the same time.

"damn, that brey chick is hot. But i gotta take a shit. I'm gonna go masteboop.

"mark's mom caught him masterbooping. He was covered in feces and semen."

by cuminmybutt January 12, 2008

Masterlooser15

The best badass coder out there, who actually knows how to program in different coding languages, and even knows how to maintain his own cheat, x88Cheats! The best cheat out there which can easily win against anyone in a hvh.

When you call someone a MasterLooser15, you are telling them that they are a god at being a programmer.

Friend: "Hey Dude, look how good he is at programming!"
Me: "Whoa! He MUST be a masterlooser15."

by MasterLooser's wannabe friend. January 19, 2019

Involuntary mastectomy

A form of breast reduction or removal. Usually performed by an unlicensed surgeon using a machete in a dark room with no anaesthesia.

You can watch how to perform an involuntary mastectomy on your girl if you pick up Tears of the sun.

by Solid Mantis June 16, 2018

J.R. Masterman

A public school in Philadelphia known to be in the top 100 schools in the country. #1 school in the state. Obviously, it is a magnet school but despite this it has very low funds from the city. There is so much competition for enterance that kids who get 95% on their entrance exams are put on the waiting list and often denied admission. Kids there are allowed to graduate in 11th grade (they don't get a graduation but they do get a diploma if they want it in 11th).

You go to J.R. Masterman? Wow.

by Hi __ June 11, 2009

mastering

The polite way to refer to rubbing one out.

I walked in and Ryan was mastering on the couch.

by hamwallet4lyfe January 23, 2009