jack in the box 

A bi- or homosexual male who has not yet revealed his sexuality publicly. "Jack" refers to the character from Will & Grace.

Kevin makes more passes at guys than a quarterback, even though he's with Kerri. Do you think's a jack in the box?

jack in the box by s.a.r.a.h. January 29, 2008

jack chirac 

President of France

jack chirac by Anonymous September 24, 2003

jack handy 

a term used to describe one who chronically jacks off

his name is phil, but it should be jack handy

jack handy by chris Washington October 16, 2005

Jack Ass Button 

A certain action that sets someone into a pissed off state. Everyone's button is different, it really depends on ones annoyances. Commonly performed by bitch ass niggas.

Vic: Don't you hate when someone sends you a text from somebody else's phone?
Joey: Yeah, that shit pushes my Jack Ass Button.

Jack Ass Button by GorillaVic21 March 23, 2009

jack fuck 

The art of titty fucking. Fucking a girls "jacks".

So remember that chick I took home Friday? Anyways, she ended up letting me jack fuck her that night...

jack fuck by Rosco Pico-train July 11, 2006

Jack knife 

farting while holding ones leg creating a very loud fart.

Wow that jack knife was sOoOoOo loud!!1

Jack knife by Adam D. April 24, 2006

jack disease 

A condition popularized by Robin Williams's role in the movie _Jack_. A person with the "jack disease" is an ugly, ugly 20-something who looks like they're fifty. To be avoided at all costs.

Damn! That Swiss girl is fucking ugly; she has jack disease!

jack disease by Javier Hdz May 19, 2006