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mooyacker 

A mooyacker is a fat assed looser that likes to talk alot about nonsense, usually shit that no one else but his stupid ass cares about!
That dumb ass mooyacker broke the chair when he sat in it, but he still kept talkin, even after his fat ass hit the ground!The Juice finally said " Shut the fuck up you stupid mooyacker!!!
mooyacker by Jimmy III July 26, 2006
Related Words
Somebody who thinks they know everything and know what they're talking about, when in all actuality, they know absolutely nothing. They tell everyone useless facts that they pulled out of their ass to try and sound smart. There is no convincing them that they are wrong.
Person 1: Did you know that if you eat poison oak leaves, you'll never get poison oak?

Person 2: Um... where the fuck did you hear that..

Person 1: uh... i read it.. in a book.

Person 2: Wow.. you're a fucking moolack.
Moolack by the anti-moolack group September 19, 2008

mooyacker 

A mooyacker is a fat assed looser that likes to talk alot about nonsense, usually shit that no one else but his stupid ass cares about!
That dumb ass mooyacker broke the chair when he sat in it, but he still kept talkin, even after his fat ass hit the ground!The Juice finally said " Shut the fuck up you stupid mooyacker!!!
mooyacker by Jimmy III July 26, 2006
Slang term for Icelander, especially a rural one--popular term among US military personnel stationed in Iceland during WWII. Origin unknown.
That Mojack insisted vehemently that his cow was sick because of being sexually assaulted by our soldiers, but after our camp veterinarian diagnosed and treated her for a common bovine ailment, she made a full recovery; then the Mojack gave us some cheese to make amends.
Mojack by hyjyljyj October 27, 2007

motojack 

When your Ladyfriend, boyfriend, ho, or other sexual servant gives you a handjob while sitting 'bitch' on your Motorcycle or Scooter.

Similar to Road Head for a car or truck.
I'm pretty tired man, my lady friend gave me a nice long motojack on the ride over.

Sorry officer, I lost control because I was getting a motojack.
motojack by elcalrissian April 13, 2010
person 1. Did you know water has calories?

person 2. No it doesn`t!

person 1. well why is it when you drink you weigh more

person 2. Omg only a fucking moolack would believe that!!!
Moolack by Spazisu July 17, 2011