once in a blue moon
To do something very rarely, once in a while.
I don't usually hang out here, just once in a blue moon.
once in a blue moon
To do something on a very rare occasion.
Stephan will come to the office once in a blue moon.
| 俚语 | once in a bluemoon |
| 释义 | once in a blue moonTo do something very rarely, once in a while. I don't usually hang out here, just once in a blue moon. once in a blue moonTo do something on a very rare occasion. Stephan will come to the office once in a blue moon. |
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