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.

a humorous term for a blow job.

A eskimo or inuit bogan with chinkey eyes

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.

Coined in the Scorsese film, 'Mean Streets', meaning a arsehole or loser.

A bowl of a pipe, bubbler, or bong packed with a mix of marijuana and tobacco.

A generic derogatory term. Many attempts have been made to define it, but it's used too widely to pin it down.