clean sweep

clean sweep (plural clean sweeps)

  1. (chiefly, politics) A complete or overwhelming victory, especially one in which all or almost all possible electoral contests are won.
  2. (sports) The winning, by a person or team, of all the possible possible prizes, games, rounds or contests, etc in a competition, season or series.
  3. A thorough change of policies, personnel or things, removing or replacing all or almost all of what was there previously.

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