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flog a dead horse.

Phrase / Idiom
Conversational
MEANING

To waste effort continuing with something that has no realistic chance of succeeding.

Use it for

Words that belong together

  • keep flogging a dead horse
  • stop flogging a dead horse

On the page

Once the building was sold, arguing for the original venue was flogging a dead horse.
She wondered whether another appeal would help or whether they were flogging a dead horse.
Word forms
Base
flog a dead horse

Usage notes

Verbal idiom: flog/flogs/flogged/flogging a dead horse. British expression; American English commonly beat a dead horse. Register: informal. Commonness: common (qualitative editorial estimate, informed by dictionaries/corpus).

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