jack-up

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."

jack-up by Jim Inman August 17, 2006

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jack up

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

jack up by osmokozmo November 13, 2007

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If someone does something stupid or dumb you tell me to jack up

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Finger or jacking off to make you warmer!

You should go jack up your heater to stay warm!

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To be beaten severely about the head, face, body etc. i.e. "Jack up" from
being jacked up combined with shit box

"I will Jack Up Your Shit Box!"

"Tony landed one punch on that guy and really "jacked up his shit box"

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A bunch of people getting roudy or having a good time together

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A stupid manuever made in a car by a driver that causes major body damage when an accident occurs.

That guy really tore up jack on his car. when he drove off the road.

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