Mumma Jack

fat camp and ugly

omg what a mumma jack

by screamer July 16, 2003

jack-off

To move your hand up and down your shaft or in and out your vigina (see masturbate)

I am jacking-off

by JP & MK March 8, 2003

Cracker-Jack

Retarded Cracker

Kala u cracker-jack

by pLaYbOy_MiNi November 21, 2003

jack wagon

A hardcore bandwaggoner. Someone who hops on trends very quickly and without knowing what they mean or represent. Usually a huge poser as well as a tool.

Conor: Dude Jack just came to school with a bulls SnapBack on and he couldn't name one player on the bulls.
Robert: What a jack wagon!

Conor: Jack ordered a bunch of odd future clothes and when I asked him to name one person from odd future besides Tyler he said Nate Dogg. Are you fucking kidding me
Daniel: Thats because he is a huge jack wagon

by Lpsweens January 12, 2012

Jimmy jacked

An explosion of energy by one usually acquired through sex, football, or other fun-like activities.

I'm excited, no I'm more than excited. I'm jimmy jacked.

by Mitchell-Francis June 6, 2010

Jacked to the Tits

Implies that something is "all fucked up", "all jacked up" or otherwise "FUBARed".

Person 1: Why are you beating the shit out of the computer?

Person 2: Facebook is all jacked to the tits today and not working right.

Person 1: What?

Person 2: Nevermind, I'll just put it urban dictionary so that it can actually be considered a word or phrase.

by Mountain Dew Boy Pepitated April 25, 2010

jack shit

1. jack rabbit feces.

2. something plentiful and omnipresent, yet nonetheless worthless.

3. nothing, or nothingness
(see jack squat)

"This here jack shit ain't worth jack shit."

Incorrect: "He don't know jack shit."
Correct: "He knows jack shit."

by Joe Bone March 11, 2005