Jump-Jack

To steal, also to rob without mercy, pretty much anything can be jump-jacked, basically the limit is a rocket ship, the U.S.S. constitution was known to be jump-jacked from the harbor by four kids on a field trip to Salem, Ma.(It was so badass) Although, people who jump-jacked from the general store were very lame and felt the wrath of THE RICK G.Usual spots for jump-jacking include Dick's and people's gym lockers.

1."Yo dude, did you hustle that twenty bucks from your mom?"

"yeah, it was like jump-jacking candy from a baby"

2."So Steve, what did you and Alex while you closed at Market Basket?"

"Well first we DILDAR-ed, Shelagged each other, Glynthed it, and then jump-jacked all the cash from the register"

Jump-Jack by Nicky killa bee B March 9, 2008

Jump n Jack 

When a couple is having sex with the girl on top unprotected and he cannot pull out being that he is on the bottom. She will proceed to jump or move as quickly as she can off of his penis and jack him off. Hopefully to prevent pregnancy.

I was about to cum, so i warned her, and she Jump n jack 'ed me off!

Jump n Jack by louhoo December 26, 2009

you jump, I jump, Jack

A phrase referring to the movie Titanic starring Leonardo DiCaprio and Kate Winslet. When Rose (Winslet) is getting ready to go into the water as the Titanic is sinking, she famously exclaims to Jack (DiCaprio), "You jump, I jump, Jack!"
It is a saying that implies that you have faith or trust in someone if they are willing to do it with you.

ex1) P#1: I know that this food looks really gross but it tastes really good, try it.

P#2: Hey, you jump, I jump, Jack

ex2) P#1: This water looks really cold and dangerous.

P#2: Don't worry, I'll be with you the whole time.

P#1: You jump, I jump, Jack!

you jump, I jump, Jack by Silent Guitar March 17, 2009

brains jump out the top like jack in the box 

(v) The act of shooting somebody in the head. Popularized by the 50 cent song 'Heat'

Man, I was playing Gears of War and made somebody's brains jump out the top like jack in the box.

brains jump out the top like jack in the box by DieLawn September 6, 2007