Idiom: Flogging a dead horse

What does 'Flogging a dead horse' mean?

If someone is trying to convince people to do or feel something without any hope of succeeding, they're flogging a dead horse. This is used when someone is trying to raise interest in an issue that no-one supports anymore; beating a dead horse will not make it do any more work.


Idioms similar to 'Flogging a dead horse'

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