Mr. Jack

Slang for a police officer that abuses his power, or any police officer in most cases. Made famous by the System Of A Down song of the same name.
Police officer: GET THE FUCK ON THE GROUND BEFORE I BEAT THE SHIT OUT OF YOU!!!
Man: Okay chill out Mr. Jack
by ThatGregGuy March 31, 2009
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Jack ass

Only a real Jack ass would interrupt a teenager at an award show and embarrass her like that.
by SmileyRay December 26, 2009
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New Jack

Short for the word New Jack Swing, used för the music genre that had its biggest years in the late 80's until the mid 90's. It is a hybrid of R&B and sounds like hip hop with a more "swinging" sound on the beats, with the r&b style of singing.

Teddy Riley is said to be the father of New Jack Swing, also Tony Toni Toné, Johnny Gill, Gerald Levert, Bobby Brown, Blackstreet, New Edition and Guy were big names in the New Jack era.
The movie New Jack City (1991) also contains a lot of New Jack Swing music.
"Don't believe a thing about the New Jack Swing!"
-Teddy Riley
by Caroline B November 03, 2006
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Jack-Mormon

A person who claims to be a 'member' of the Church of Jesus Christ of Latter-Day Saints, but is mostly inactive. Observes some basic principles of 'mormonism', but generally has torn up the rule book. Usually to be found in Utah, where a high concentration of this sect can be found.
A Jack-Mormon often does not observe their guidance of not consuming alcohol or coffee. Can be found to attend the church for say a wedding or funeral. A Jack-Mormon usually, finds themselves at odds with the church. Often this person has been raised in a mormon family unit but come to the conclusion that it does not suit their beliefs.

From experience in Salt Lake City (HQ of Mormonism), this person(typical Jack-Mormon) cannot wait to escape the confines of Utah over the border to Nevada, often going to the small city of Wendover being the nearest to get to, to partake in prostitution, alcohol and gambling.
by tictactaylor February 11, 2010
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jack in the kacks

a person who takes delight in sniggering while masturbating themselves without anyones knowledge and the removal of their trousers
Stevie D enjoys a jack in the kacks during free class in the top study
by aybsteve May 05, 2005
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Jack Out

To leave work unannounced with no warning. To sneak out before the appropriate end of the work day.
Daron said he is going to Jack Out today at 2pm so he can go golfing.

Dude, I am going to Jack Out of here as soon as the manager steps away.

John just Jacked Out the back door.
by TheInsideMan July 31, 2009
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Lumber Jacks

A group of girls that are constantly negative and always cutting everyone else down.
Well we all wanted to stay out drinking but the Lumber Jacks are making us go home.

They are always cutting us down.
by Modeen August 27, 2014
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