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when pigs fly

Idiom · B2

when pigs fly

Meaning

Never, used for impossible things.

Example

He'll apologise when pigs fly.

When to use it

Sarcastic impossibility.

Upper intermediate (B2): sounds natural and fluent.

Try "when pigs fly" in a sentence

Write two or three sentences with it. Nib checks the grammar and tells you if it sounds natural.

More idioms

a blessing in disguiseSomething bad that turns out to be good
a long shotAn attempt with little chance of success
actions speak louder than wordsWhat people do matters more than what they say
against the clockRushing to finish before a deadline
back to square oneBack to the beginning after a failed attempt
beat around the bushTo avoid saying something directly
bite off more than you can chewTo take on more than you can manage
call it a dayTo stop working for the day

See all 244 phrases →

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