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42.
Any member of the deer family, such as moose, elk or deer. Often an expression of surprise upon spotting a deer or moose in an unexpected environment. Mook may be a contraction of, "Moose! Look!" Mook is of uncertain origin, but may have its roots in baby talk. Mook is an expression used more commonly by city dwellers than country folk.
Look at that mook eating up the neighbor's prize fruit trees!

At the cabin: "What's that animal in the field?" "I dunno. Some kind of mook!"

That mook would make good eating!

Mook meat tastes gamey.
by Rosalita Franconi August 28, 2010
 
1.
Coined in the Scorsese film, 'Mean Streets', meaning a arsehole or loser.
I'm not paying, because this guy's a mook
by ThomasJThomasJ October 14, 2006
 
2.
A term coined by Douglas Rushkoff in an episode of PBS's "Frontline" entitled "The Merchants of Cool." Mooks are archetypal young males(teens-early 20s) who act like moronic boneheads. They are self centered simpletons who live a drunken frat-boy lifestyle(or are frat-boys). Examples can be found anytime someone watches "Jackass." Rushkoff claimed that the media glorifies this ideal and stifles natural self expression, however, some people might argue teenage boys have always acted like morons(its actually a long-standing stereotype). Nonetheless, standardized conformist dumbass-culture behind a veneer of exhuberance is a scary notion indeed.

Opposite of Mooks are Midriffs; oxymoronic innocent skanks who are modeled after Britney Spears.
Although everyone likes to blame Jackass, anyone on that show is a model Mook.
by gooberliberation December 28, 2005
 
3.
(noun) 1: A male adolescent or young adult exhibiting an unpleasant, self-centered attitude, formed during a sheltered upbringing. 2: One who revels in their own ignorance.
I don't like that club; it's full of mooks.
by DannyT May 16, 2006
 
4.
dummy, idiot, retard, loser, unlikeable person, poseur, etc.
Basically someone that you think is stupid.

This is how it is interpreted in So.Cal. for the most part.
There you go you fuckin' mooks.
i hate that mook,what's with this mook?,get this mook out of here,fuck these mooks,this guy looks like a mook.
by C.E.Meza April 21, 2006
 
5.
(adj) a jerk; not that nice of a person.
That guy just bumped into you, and didn't even say sorry. What a mook!
by Wormtail March 08, 2005
 
6.
Usually used to refer to generic goons in TV and role-playing games. Mooks are usually faceless henchmen who show up only to be easily dispatched by the main characters.
1) The Saiba-men in Dragonball Z were a bunch of mooks.

2) It's fun to beat down a ton of mooks before facing the "boss" monster.

by ObiWayneKenobi February 19, 2007
 
7.
A generic derogatory term. Many attempts have been made to define it, but it's used too widely to pin it down.
From the film, Mean Streets (1973):

Johnny Boy:
"We won't pay because this guy is a... mook."

Jimmy:
"But I didn't say nothin."

Joey:
"We don't pay mooks!"

Jimmy:
"A mook. I'm a mook... What's a mook?
"You can't call me a mook!"

A fight then ensues.
by ffub June 15, 2005