Wiktionary
vb. (present participle of jack up English)
Usage examples of "jacking up".
He leaned the wheel against the side of the car, lowered the axle to the pavement, glanced briefly up and down the street and began jacking up the outside wheel.
The two boys climbed out of the car and disconsolately set to work jacking up the rear axle, removing the ruined casing and putting on the spare wheel.
Now, before they've even bothered to call us, they're jacking up their alert levels.
While I was jacking up the car and Tish was getting the key of the toolbox out of her stocking, Aggie sat sullenly in her place and watched us.
Those were the early days of augmentation, artificially jacking up the human machine to inhuman levels.
Elin felt an instant's petulant boredom, and the workboard readjusted her wetware, jacking up her attentiveness so that she leaned over her readouts in cool, detached fascination.
The air was cold in the garage, like a huge icebox--it seemed even colder than the outside, and my chapped hands had trouble with everything--jacking up the car, getting the slashed tires off their rims and putting the new tires on the rims and on the car.
Sonatone would take over, jacking up their prices and concentrating on making money.
A large, fluffy, white cat jumped up on the bed and wedged himself inflexibly between them, jacking up his rear and purring like a sewing machine.