to flog a dead horse
- idiom
- Informal
- We should stop discussing that issue; it's just flogging a dead horse now.
Examples
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Deal with it and stop flogging a dead horse.
Blog text (16) -
But at this point, the media "horse race" narrative is flogging a dead horse.
Blog text (24) -
Talk about flogging a dead horse!
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I am not reaching out and flogging a dead horse.
Blog text (2) -
I'd say you were flogging a dead horse, old man.
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Jeez, talk about flogging a dead horse.
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There's no point in bringing it up again; we're just flogging a dead horse.
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Continuing this debate would be flogging a dead horse, as the decision is already made.
Synonyms
Continuing to talk about something already decided and pointless
Try very hard to do something even though you will probably fail
To waste time and effort without making progress
To try many times to do something without success and feel frustrated
Spending time or effort on something that will not work
Antonyms
How Fruitless
- Informal
Surface Forms
Morphology
flog + a + dead + horse
The literal image of 'flog' (to beat) + 'a dead horse' (an animal that is no longer alive) readily suggests the futility of trying to revive or change something irretrievable, so a learner can infer the idea of wasting effort. However, this is a metaphorical extension rather than a direct compositional meaning and relies on pragmatic/cultural inference, so the sense is not fully predictable without prior exposure.
Etymology
The idiom flog a dead horse comes from the simple picture of someone beating a dead animal to make it move: to flog means to beat and a dead horse cannot move, so the action is pointless. That's why it means 'to waste effort on something that will not work'.