1
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Phrase(s): jack someone up
1. Sl. to excite or stimulate someone, possibly with drugs. • Tom jacked up his buddy by talking to him. • Tom jacked up Fred with a lot of encouragement. 2. Sl. to motivate someone; to stimulate someone to do something. • The mail is late again today. We’ll have to jack those people up at the post office. • I guess I’ll have to jack up the carpenter again to repair my stairs., Phrase(s): jack something up
1. Lit. to raise something up on a mechanical lifting device. • Now I have to jack the car up, so I can change the tire. • Please jack up the car. 2. Fig. to raise the price of something. • The store keeps jacking prices up. • The grocery store jacked up the prices again last night.
McGrawhill's American Idioms And Phrasal Verbs
2
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Raise or increase, as in The cartel is jacking up oil prices again. This term alludes to the literal meaning of jack up, that is, "hoist with a jack." [Colloquial; c. 1900]
American Heritage Idioms