Definition of "revving" [revving]

• Present participle of rev. (verb)

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• "Through conferences, debates, panel discussions, lectures and publications, Danforth hopes that as the 2012 presidential campaigns begin revving their engines next year, the center can have a calming effect on a debate that some say has devolved from thoughtful to thoughtless."
• "FEYERICK: You use the word revving, the engines sounded as if they were revving."
• "About 10 minutes later, while the Magnolia resident was resting in the room, he heard a noise close by that he described as the revving of a car engine."