verb; While you are making out, you grab the girls hand and place it on top of your boner, with your own hand on top of hers. Making sure that she begins to stroke your bone by moving her hand with yours, thus initiating the jump start.
by Mike Leech September 14, 2006

Different form a video game. When a person is on a jump mode means that he and his homies or posies are going to beat the living hell out that snitch, bitch ass or just-don't-like-that-fool. on sight.
by nyfinest17 April 13, 2009

Person 1: "Hi mate who's it for?"
Taxi man: "Bar Java"
Person 1 "Yep that's mine"
Person 2: " he's taxi jumping!"
Taxi man: "Bar Java"
Person 1 "Yep that's mine"
Person 2: " he's taxi jumping!"
by Ezbomb April 11, 2016

When you trust a girl to stay at your place, but not enough to give her a key. You make her leave through the garage. She opens the garage and hits the close button. She runs as fast as she can out of the garage hurdling the sensor while simultaneously ducking down to avoid the garage door as it closes.
by Phillip_Banks July 18, 2014

def: (v.) The action of watching a movie you payed for in a theater then, after the movie is done, walk into another theater without paying.
Friend: Hey, those are the people that sat next to us in the 2012 theater room. Why are they going into the New Moon theater?
You: They're probably movie-jumping. Lets go follow them. Shirtless guys here we come.
You: They're probably movie-jumping. Lets go follow them. Shirtless guys here we come.
by Missh.Salisix November 25, 2009

by Damian A. Smith May 13, 2005

1. To make or take a decision hastily without much consideration about it.
2. Rushing into something.
2. Rushing into something.
" - Nate, I think we should have a baby.
- Maybe you're jumping the gun here, honey. Let's finish highschool first."
- Maybe you're jumping the gun here, honey. Let's finish highschool first."
by Gunwild May 15, 2017
