Captian Jack Harkness 

1: Noun, a companion and helper of The Doctor on the Brittish television show Doctor Who. An omnisexual conman who runs the secret organization Torchwood. After becoming a fixed point in time, he ages very slowly, and eventualy becomes the (SPOILER) Face Of Boe.
2: adj. Someone who is very sexualy active, or makes lots of inapropreate passes, jokes or enjoys such. A boundless flirt.
3: Captian of the Inuendo Squad.

Gwen: Have you ever eaten Alien meat before?

Captian Jack Harkness: Yeah, once.

Gwen: What was it like?

Jack: Well, he enjoyed it!

Captian Jack Harkness by CuriousKuro October 2, 2011

Nut Swinging Apple Jack 

Someone who gets away with doing little or no time for a crime they committed.

The jury got bad instructions he's out on the street like a Nut Swinging Apple Jack

Nut Swinging Apple Jack by 14 Bag Bundle August 6, 2016

low jack 

The ankle bracelet used as a tracking device worn by those under house arrest.

"i can't go to the party, man. I'm still on house arrest. They'll know i left the house cause of my low jack."

low jack by Amy Christ April 29, 2005

one eyed jack 

A one-eyed jack is, in a standard deck of cards, the Jack of Spades or the Jack of Hearts, both of which are seen in profile (and thus only one eye is seen).

My pair of one eyed jacks blew away her pair of eights

one eyed jack by socioclast83 October 25, 2008

air jack 

the hand gesture associated with actual jacking off; like air guitar only air jacking off

jake and i simultaniously air jacked all over levi's face and gave him an air facial.

air jack by cheweysmoker October 5, 2008

Alaskan jack hammer 

When a girl is on one side of a room with her legs spread and a guy on the other side of the room, takes aim, and runs.

Sarah Palin loves the alaskan jack hammer

Alaskan jack hammer by big nasty sucka January 17, 2009

creep jack

in warcraft3 when you are killing creeps and someone comes up from behind you and attacks you.

Woah shit0r, some fucking n00b creep jacked my shit. IM GONNA LOOSE TO THIS FUCKING N00b. AGHHHHHG, no townscroll!

creep jack by x-pose September 23, 2003