Word.ws English Dictionary

mercy flush

mercy flush noun: an additional toilet flush to reduce odor or decrease the likelihood of the toilet pipes becoming clogged.

Noun

mercy flush (plural mercy flushes)

  1. (slang) An additional toilet flush to reduce odor or decrease the likelihood of the toilet pipes becoming clogged.
    • A more usual problem with a hatch is that it was shut too tightly. Rig for dive checks can be done submerged, with sea pressure on the outer hatch. New JOs, doing the check, sometimes forget and shut the outer hatch even more tightly when checking it shut. Subsequently, opening the hatch on the...1995 October 18, Doug Huffman, “Seawater in submarines”, in sci.military.naval (Usenet)
    • For the cruise ship sailors among us; the stool flush ball valve has a three foot long lever positioned at the users elbow. Because of the quantity and quality of submarine food one gets into the habit of "mercy flushes" that are periodic quick pops of the flush valve open and shut (kind'a like...1998 April 18, dhuf...@awod.com, “Things S**t-Canned Over the Side ”, in sci.military.naval (Usenet)

Examples of mercy flush in a sentence

  • Generally happens only once per career (kinda like a mercy flush over a pressurized sanitary tank).1995 October 18, Doug Huffman, “Seawater in submarines”, in sci.military.naval (Usenet):
  • Because of the quantity and quality of submarine food one gets into the habit of "mercy flushes" that are periodic quick pops of the flush valve open and shut (kind'a like with a 1.6 gpf commode).1998 April 18, dhuf...@awod.com, “Things S**t-Canned Over the Side ”, in sci.military.naval (Usenet):
  • From one of the stalls came a painful-sounding groan, and someone shouted, "For Christ's sake, give us a fucking mercy flush, would you!"2015, Thomas O'Malley, Douglas Graham Purdy, Serpents in the Cold, New York, N.Y. […]: Mulholland Books, →ISBN, page 81:

Forms of mercy flush

pluralmercy flushes

Questions about mercy flush

What does mercy flush mean?
Mercy flush means an additional toilet flush to reduce odor or decrease the likelihood of the toilet pipes becoming clogged.
How do you use mercy flush in a sentence?
Generally happens only once per career (kinda like a mercy flush over a pressurized sanitary tank).
What part of speech is mercy flush?
Mercy flush is a noun.
What is the plural of mercy flush?
The plural of mercy flush is mercy flushes.

Words near mercy flush in the dictionary

  1. mercy
  2. mercy bucket
  3. mercy buckets
  4. mercy chair
  5. mercy chairs
  6. mercy flush
  7. mercy flushes
  8. mercy fuck
  9. mercy fucks
  10. mercy killer
  11. mercy killers

Source and license

Adapted from Wiktionary: mercy flush (page history and authors). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.

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