Once in a blue moon

Term

Once in a blue moon

Definition

An idiom that refers to something that happens very rarely.

Examples

I only get to see my grandparents once in a blue moon

Winning the lottery once in a blue moon is possible, but very unlikely.

Origin

Believed to have been in use since the 1800s.

FAQs

What does once in a blue moon mean?

Answer

Once in a blue moon is an idiom that refers to something that happens very rarely.