Knock out
Knock out verb - To use up all the physical energy of.
Cite this Source
Swamp and Knock out. (2016). Retrieved 2026, August 03, from https://thesaurus.plus/related/knock_out/swamp
Knock out & Swamp. N.p., 2016. Web. 03 Aug. 2026. <https://thesaurus.plus/related/knock_out/swamp>.
Swamp or Knock out. 2016. Accessed August 03, 2026. https://thesaurus.plus/related/knock_out/swamp.
Google Ngram Viewer shows how "knock out" and "swamp" have occurred on timeline