jack one in

To cock or load a round of ammunition into the chamber of a weapon.

My gun was unloaded, i forgot to jack one in.

by MarkXIX November 16, 2007

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Jack Fearn

Gets lots of sleep, reduces distractions and tries hard to get that positive nine-to-eight ratio.

JACK FEARN, YES PLEASE

by bigboijimbo August 11, 2022

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Where a male cums in a girls vagina after sex, then the girl doesn’t clean out her vagina goes home to her boyfriend. The when her boyfriend/husband/fiancé fucks he is surprised by the jack in the girl.

Resuev dumped Lana after finding Adrian’s jack in a girl.

by George_Orwell 1984 January 27, 2018

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Jack Armstrong

While it may seem like a slang name, and very well might be to some, Jack Armstrong is also a name of high rank.

Jack Armstrongs are very handsome, caring, and intelligent men.

They give women the shivers and are the subject of day dreams.

Jack Armstrongs are forgiving, intellectual, and are quite possible the most dreamy of men.

Want to know what is more romantic than The Notebook?

Jack Armstrong is.

by SandyDunes November 2, 2014

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Jack-asshole

Noun. One who is simultaneously so idiotic and such a jerk that s/he goes beyond just "jack ass" or "asshole" to a combination of the two.

Also related: jack-assholery.

Did you see that truck taking up four parking spaces in the lot? That guy's a real jack-asshole.

by holacrr July 18, 2013

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