Mustayeen 

The greatest person ever. Makes everybody drool (guys and girls alike), but is determined to stay an eternal virgin. He is vulnerable to STDs due to his micro-penis

Friend: "Yooo look at that absolute sex magnet!"
Other Friend: "That's the holy Mustayeen bro"

Mustayeen by faze_mahfuzez_ash March 30, 2020

mustanger 

In military slang, an officer who previously served as an enlisted soldier.

Best officers I encountered during my time in the service, bar none, were "mustangers" (former enlisted who became officers) and warrant officers. Most of the others (ROTC, OCS or West Pointers) were frag-fodder.

mustanger by Sidamo September 8, 2005

Mustacherbating 

the act of repeadetly rubbing or touching ones mustache

"mmmmmm i love this stache"
"eww dude gross. stop mustacherbating"

Mustacherbating by mustacheman1234 June 1, 2012

mustaqeem 

The most awesome, handsome , rich man in the world

Everyone can be mustaqeem

mustaqeem by Q=mL January 2, 2017

Mustaeen 

The literal definition of an asshole. Backstabs friends, takes hundreds of photos of them without their permission, and acts like he's the best at everything but everyone knows hes not. He will always talk about you with others, and share pictures despite the fact that the victim knows about it. Usually this person will make someone look bad so he seems cooler than them. He also likes to lure in girls to play minecraft so he can get coochie.

Man, that guy is such a Mustaeen, I wouldn't wanna be his friend.

Mustaeen by somebrare-o September 25, 2019

muskateering 

taking a poop with a group

Me and the boys headed off to go muskateering.

muskateering by Dilan Martin May 24, 2004

muskateering 

In some parts of the world, it means taking a group poop... However, in cooler places, it means going out as a group of 3 or 4 males and attracting several females (hopefully 2 to 3 times the number of men) and slaying them with "swords" over the course of a weekend - while only answering to the names Athos, Aramis, and Porthos. There is also a point system for what you do with the females, and the winner is the strongest muskateer for that specific period of time.

Come on fellow boys, let us all go muskateering this weekend - all for one and one for all!

muskateering by Porthos The Duke of Slay March 18, 2011