Top definition
Excessively short trousers resulting in the exposure of ankles, and in extreme cases, calves.
haha, look at them jack ups
by potusss January 23, 2007
Get a jack ups mug for your bunkmate Yasemin.
2
Derogative term for trousers worn too short (approx 1-3 inches above the shoe), often with white socks underneath making the jack-up more obvious.
Check that guy's jack-ups
My best trousers had shrunk, resulting in fairly serious jack-ups
by Nicky November 28, 2004
Get a jack-ups mug for your bunkmate Abdul.
3
1. Incrase sharply

2. Inject illegal drugs

3. Raise a car to be able to do mechanical work
1. Jack up the oil prices

2. Jack up heroin four times a day

3. Jack up the car and change the tyre
by osmokozmo October 26, 2007
Get the jack up neck gaiter and mug.
4
commonly thought of as meaning trousers that are too short, 'jack-ups' are actually trousers that, surprise surprise, have been 'jacked' up. That means that the waistband has been pulled higher than necessary, possibly up to the naval (bellybutton) or chest.
person1: (indicating person2's trousers) ha, look, he's got jack-ups!

person2: actually, my trousers are just a bit short

person1's friend, person3: yeah thats what jack-ups are, you idiot

person2: commonly thought of as meaning trousers that are too short, 'jack-ups' are actually trousers that, surprise surprise, have been 'jacked' up. That means that the waistband has been pulled higher than necessary, possibly up to the naval (bellybutton) or chest.

person1 & person3: youre such a nerd
by A D August 13, 2007
Get the jack-ups neck gaiter and mug.
5
To jack-up is a gymrat term for working to improve a specific muscel or set of muscels, especially women who want to firm-up their butts.
She is doin something to jack-up that ass. I'll bet she spends an hour-a-day on the stairclimber."
by Jim Inman August 17, 2006
Get the jack-up neck gaiter and mug.
6
Jack ups are simply trousers that are too short. There are at least 2-3 cm above your ankles.
Example 1 :

Your trousers are serious jack ups.(only if it is really visible that they are above your ankles)
Example 2:

Look at them jack ups, they are too LOL
by Itz_cutequeen October 13, 2017
Get a Jack ups mug for your coworker James.