one fell swoop (uncountable)

1. (idiomatic) One stroke; one action or event achieves or accomplishes many results.

   Changing the oil lubricates the engine and removes debris in one fell swoop.

   • 1605, William Shakespeare, Macbeth, act iv, scene 3:

     What, All my pretty Chickens, and their Damme
     At one fell ſwoope?

   • 1922 February, James Joyce, Ulysses, Paris: Shakespeare & Co.; Sylvia Beach, OCLC 560090630 ↗; republished London: Published for the Egoist Press, London by John Rodker, Paris, October 1922, OCLC 2297483 ↗:

     , Episode 16:

     ...they might be hanging about there or simply marauders ready to decamp with whatever boodle they could in one fell swoop at a moment's notice, your money or your life, leaving you there to point a moral, gagged and garrotted.

• French: d'un seul coup
• German: in einem Rutsch, mit einem Schlag
• Russian: одни́м ма́хом
• Spanish: de repente