make a clean sweep

make a clean sweep idiom
  1. Remove or eliminate unwanted persons or things, as in The new owners made a clean sweep of the place, intending to replace all the equipment. This phrase replaced the much older (16th-century) general sweep. [Mid-1800s]
  2. Win overwhelmingly, as in Our candidate made a clean sweep of all the districts. This usage is most often found with reference to success in a sports competition or election.

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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