once in a blue moon

once in a blue moon

almost never, very seldom, very rarely; very infrequently:

„Do you ever get flowers from your husband?“ „Once in a blue moon.“

„Paul and I used to hang out all the time, but now we only see each other once in a blue moon.“

 

once in a blue moon = jednou za uherský rok

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Previous idioms:

beat around the bush

pull somebody’s leg

talk through one’s hat

(run) out of steam