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to flog a dead horse

to flog a dead horse

1 7.5
To waste effort on something that cannot succeed
  • idiom
  • Informal
translation icon : dar palos a un muerto
  • We should stop discussing that issue; it's just flogging a dead horse now.

Examples

  • 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!

  • I am not reaching out and flogging a dead horse.

    Blog text (2)
  • I'd say you were flogging a dead horse, old man.

  • Jeez, talk about flogging a dead horse.

  • There's no point in bringing it up again; we're just flogging a dead horse.

  • Continuing this debate would be flogging a dead horse, as the decision is already made.

Synonyms

beating a dead horse
vsto flog a dead horse
  • Informal
6 7.5

Continuing to talk about something already decided and pointless

is identical in meaning but uses a different idiomatic form
to fight a losing battle
vsto flog a dead horse
  • Informal
4 6.5

Try very hard to do something even though you will probably fail

means wasting effort when success is impossible or the matter is settled
to spin your wheels
vsto flog a dead horse
  • Informal
2 7.9

To waste time and effort without making progress

refers to wasting effort when success is impossible or already settled
to bang one's head against a brick wall
vsto flog a dead horse
  • Informal
1 8.2

To try many times to do something without success and feel frustrated

applies when effort is pointless because success is impossible or settled
pissing in the wind
vsto flog a dead horse
  • Offensive
1 9.9

Spending time or effort on something that will not work

focuses on waste where success cannot be achieved or is already decided

Antonyms

2.3

To reach a goal by effort or skill

846 2.0

To reach a goal after trying hard

How Fruitless

to flog a dead horse
  • Informal
1 7.5
to waste time
728 1.6
to persist
62 3.7
to pursue
3.5
to try
1.0

Surface Forms

flog a dead horse infinitive
flogged a dead horse past participle
flogging a dead horse present participle
flogs a dead horse third person singular

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'.