jump 

A surprise or planned fight, when either (a)one individual is attacked/beaten by a group of 2 or more individuals or (b) when a notiably larger group attacks/fights a smaller group of individuals. These fights can occur with or without any kind of valid reason to jump someone.

A onesided fight.

verb jumped

"Man lets jump this kid coming this way on his bike"

"Me and my cousin are going to jump this guy that stole our car"

jump by DetroitSlang May 14, 2003

jump 

1. to fight(often applied to street gangs, especially denoting a surprise attack)

2. to attack or assault

3. to copulate with

They tried to jump those punks over there.

jump by The Return of Light Joker February 19, 2008

Jump 

To beat up someone

let's go jump him.

Jump by Ni2k August 13, 2010

jump 

to use your legs to propel yourself off the ground.

I can jump into the air

jump by Dude 2000 October 16, 2003

jump 

To want to have sex (or make out with, or anything along those lines) with someone. It is usually said more in the figurative sense, rather than literal.

ex. Your brother is hot, i want to jump him.

jump by catttty July 16, 2008

jump 

Random attack usually by a group of individuals on a lone person.

Rudeboy1: Im bored
Rudeboy2: Yeah me 2
Rudeboy1: Ha look at that t**t
Rudeboy2: Lets go jump him

jump by XD yeahhh August 21, 2005

jump 

n. A shag, fuck, intercourse. Most common in northern UK, especially since "Rita, Sue and Bob too".

"Reet, yer fancy a jump?"

jump by markyspeaks February 9, 2005