jack up

jack up idiom
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]

The American Heritage® Dictionary of Idioms by Christine Ammer. Copyright © 2003, 1997 by The Christine Ammer 1992 Trust. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

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