Meanings
See blue moon.
How to pronounce "once in a blue moon":
AU
Very rarely; very infrequently.
Example Sentences
1
I only eat fast food once in a blue moon.
2
My brother visits me in the city once in a blue moon.
3
She cleans her room once in a blue moon.
4
We go on vacation once in a blue moon.
5
It's rare for me to go to the theater; I do it once in a blue moon.