Musthaeen 

A boy who likes fat cats

He is such a musthaeen

Musthaeen by Jimmy and pig January 30, 2019

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

mushpeenie 

game played where 2 dudes push their limp dicks together and the first one to get hard loses and catches a beating

mike is the long island mushpeenie champion

mushpeenie by dtot March 27, 2007

musteen 

an erection that you do not want; creates an awkward social situation.

i was talkin to jack and his mom kept staring at my musteen

musteen by child bumper May 28, 2009

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

Musthave 

A crabby old bitch

Musthave is pissy because Loder knows her definitions suck.

Musthave by Loder June 4, 2003

Musthakeem 

His a legend who was born 2000 , and Livin in sri Lanka and his a great chef !

Musthakeem is a great chef

Musthakeem by anonymous November 22, 2021