When a dog starts to growl & shows his/her teeth.
Be careful, Rover is starting to mook at that other dog.
von Endowed With Wisdom 16. Februar 2015
The highest level of a promise or "swear".
Against morals to go against mooks.

Like: "I swear on my mother," "truly," "seriously," "word".

Originated in CF, RI.
Mooks that new tv show is fresh.

Dre: did you really just buy those kicks after you saw me wearing em a week ago?

Rob: nah man I had em way before you.

Dre: say it !?

Rob: Mooks man.

Dre: Fuck you.
von DrizzleD 6. Mai 2011
A person who is full of themselves. A person who acts like they are better than anyone and super self-centered. No one really likes these people and they find them very irritating. They often can be found wearing popped collar polo shirts, backwards hats, and stone washed jeans. Further identifying marks are tribal tattoos and Cali stars. It has been believed that the mook population annually migrates to it's native breeding ground of New Jersey.
Rick: Hey what's wrong with that ET2 Delia, is he always a dick face?

Chet: Yeah he's always a fucking mook. Fuck him.
von Steve MCGinnis 6. Juli 2014
mook is an Italian-Americanism from the word "mucchio," meaning heap or pile.
"You're a mook!" as in you're a pile of shit
von rorric 12. Dezember 2010
a Class A Idiot

now before we get carried away thinking this word is new, very much not, i'ts said in 100's of classic TV shows and movies, from Stooges to Gleason, in the three Stooges its been used in the same way we use it today, they even went so far as to use it as the names of characters
Moe Howard as Dr. Mook Schlepper
von Cosmic Pope 24. Juli 2010
A belligern"t being.
"Mook" is a spin-off word for, "mick", which is an Irishman.
Someone doing something wild, crazy.
Look at that mook running naked down the street.
von jstarr92 7. Juni 2010
Slang term for homosexual, usually one who is flamboyantly flaming
Friend 1: I love anal sex
Friend 2: You're a mook
von Agehdxjjj1234 1. März 2014

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