jack up (2)
Meaning: If you jack something up, you use a jack to lift it off the ground.
- jack up sth If you've got a flat tyre, jack up the car and then you can change the tyre.
- jack sth up If you've jacked a car up, don't get under it because the jack could break or tip over and the car could fall on top of you.
If someone has jacked up their car, they probably have