jazz up

jazz up idiom
  1. Enliven, make more interesting, as in They jazzed up the living room with a new rug, or They decided to include a comedy act to jazz up the program.
  2. Modify so as to increase its performance, as in Peter wanted to jazz up his motorbike with a stronger engine. Both usages are colloquialisms from the mid-1900s. Also see juice up.

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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