Jack-Hole 

1. The combination of a Jack-Ass, and an Ass-Hole.

2. Someone who thinks they're better then everyone else, and resorts to petty name calling when they're angry.

(ex. 1)
Wow, Mitch is such a Jack-Hole, he called me a dork yesterday because I mentioned a video game... - Mic

Yeah, I don't get why he thinks he's so cool... Everyone hates him - Morgan

(ex. 2)
Why do those two hang out with that Jack-Hole - Guy 1

I don't know, I guess they've got no other friends - Guy 2

Jack-Hole by The Mysterious Mister M April 22, 2010

jack your jaw 

Jacking someone's jaw is another way of saying to beat someone up. To punch someone in the face, around the jaw area.

Hey dude back off my girl! I'm gonna jack your jaw!

jack your jaw by justinm2010 May 28, 2010

I'm all right Jack! 

(originally: "Fuck you, Jack, I'm all right!!" - described the bitter dismay of sailors ("jacks") returning home after wartime in the Navy to find themselves not treated as patriots or heroes, but ignored / sneered at by a selfish, complacent, get-ahead society - phrase was subsequently toned down for acceptable general use.)
Attitude of "every man for himself, survival of the fittest, devil take the hindmost", ... but also, that all the possible advantages (however gained), success (however won) and satisfaction (whatever the cost to others) belong to me first!" Narrow-focus, narrow-gauge pseudo-Darwinian selfishness glorified as a sensible philosophy of society and life.

People who find it hard to say "I'm all right Jack!" outright, say to anyone they find no longer useful: "I'm trying to get my life in order right now, so can you respect that, please?!..." (just before they throw themselves laughing into more fun and merry chaos!)

I'm all right Jack! by kofi May 19, 2003

jick-jack 

messing around, dawdling, dilly-dallying.

Quit jick-jacking around! We've got to get in the car and go!

jick-jack by Silas Almgren January 2, 2008

jackage 

Material - pictures or videos used for jacking off.

Man, Mister Fister has some high-quality jackage for the discriminating gentleman.

jackage by Mister_Fister May 27, 2006

Jack Squat 

Another way to say Jack Shit.

there are users on this website who do not know jack squat about writing a good definition.

Jack Squat by Light Joker May 21, 2004

jack skellington 

The most perfectly scarey/heartfelt charecter from a film ever The Nightmare before Christmas. "Jack Skellington" is the pumpkin king of halloweentown who is fatigued of the Halloween way of life. He wants more from life apart from scaring young ones and all. When he finds Christmas town he wants it so he takes it for himself. When its ruined he trys to fix it. He is a good soul who trys to make everything good but cant.

Jack Skellington is tall and thin with a bat bowtie

jack skellington by Alfie Salisbury January 1, 2005