Do you see your friends often?

Or do you only see them once in a blue moon?

Learn about the idiom, " once in a blue moon ", in this video.

What are you doing this weekend?

I 'm going camping with my friends.

I'm excited because I only see my friends once in a blue moon.

Once in a blue moon? What do you mean?

Once in a blue moon means rarely.

This is because the moon only looks blue very rarely.

This can happen when there are certain types of natural disasters.

What do you like to do once in a blue moon?