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once in a blue moon
Occasionally; very rarely. Peter only comes out for a drink once in a blue moon now that he has kids. A: "Do you ever eat pork?" B: "Only once in a blue moon; I prefer beef."
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once in a blue moon
Occasionally; very rarely. Peter only comes out for a drink once in a blue moon now that he has kids. A: "Do you ever eat pork?" B: "Only once in a blue moon; I prefer beef."
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