Mooyuk 

A fool. A silly or incompetent person. A minor insult used among friends or about someone not worthy or a major insult.

You locked yourself out of your car? You fuckin' mooyuk.

Mooyuk by defenestrator March 22, 2005

mooyak 

geek, jerk, or idiot. someone who acts like an ass. four legged ruminid hybrid.

that dude is a total mooyak!

mooyak by damn azer June 7, 2005

Moobyuken

When someone performs the Shoryuken move from Street Fighter onto a fat-man's moob, causing it to swing up into the air

Guy #1: Dude look at that fat guy, I'm totally gonna give him a Moobyuken
Guy #2: What?
Guy #1: Watch...MOOBYUKEN!
Fat guy: OW! what was that for?
Guy #2: owned

Moobyuken by BigPalooka December 4, 2009

mooyaka 

Jungliest Cow

:: shrugs ::

mooyaka by Puu-Chi November 6, 2003