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Mook (noun) Originally referred to an Italian-American male; similar to Mick in reference to an Irish-American male; Modern use extends beyond ethnicity, gender, and income levels to refer to a average person inclined not to be athletically or mentally gifted, especially in the moment or during a particular situation. Mook is used as either a humorous (knucklehead) or derrogative (jerk) expression of humanistic imperfection or inappropriatness, such as to describe a person's clumsiness or loudness. The word is most often heard in the NE region of the United States, particularly New York City, Atlantic City, Philadelphia, and Boston.
Hear "What a mook!" in a ballpark when a baseball player drops an easy fly ball or to describe a person having no worldly knowledge beyond his neighborhood. Two brothers reply "...because we are just a couple of Mooks!" when asked why after graduating from elite universities they ended up doing PBS talk radio about automobile repairs. The word mook is best applied with a Bronx, Philly, or New Jersey shore accent.
Mook by DLGeary March 5, 2011
Related Words
mook mookie Mooky mooked mook (n.) mooka mooker mooking mook mook mookentooken
mook (mōōk)

n. Slang
An insignificant or contemptible person.
"mook." The American Heritage® Dictionary of the English Language, Fourth Edition. Houghton Mifflin Company, 2004. 17 Jul. 2009.
Most of definitions submitted to Urban Dictionary are written by mooks.
Mook by SenseiC July 17, 2009
Jdot- son got the shrimpy
Bdot- nah u mad mook 🔥
Mook by GomdBozo October 21, 2021
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.
mook by ffub July 15, 2008
overwhelmingly gay
"did u hear he likes men?"
"yea he's mook"
mook by manganese November 19, 2016
A bowl of a pipe, bubbler, or bong packed with a mix of marijuana and tobacco.
Pack a mook. I'm about to take a mook right now.
mook by mookyisland April 12, 2014