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rev up

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Increase the speed or rate of, enliven, stimulate, as in Bill revved up the motor, or They looked for ways to rev up the ad campaign. The verb rev is an abbreviation for revolution, alluding to the rate of rotation of an engine. The idiom dates from about 1920 and has been used figuratively since the mid-1900s.

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The American Heritage® Idioms Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.

How to use rev up in a sentence

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