Question

PHRASES.
IDIOMS
blue moon
& na
Once
flogging a load horse​

Answer 1

Answer:

once in a blue moon means very rare

Answer 2

Answer:

To do something “once in a blue moon” is to do it very rarely: “That company puts on a good performance only once in a blue moon.” The phrase refers to the appearance of a second full moon within a calendar month, which actually happens about every thirty-two months.

Explanation:

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