Once In A Blue Moon Idiom
That happens only once in a blue moon when the weather is cold enough and thus the ice thick enough.
Once in a blue moon idiom. Cambridge dictionary of american idioms cambridge. The earliest example of it that i can find is in pierce egan s real life in london 1821. The phrase once in a blue moon meaning something rare or unusual came as a result of the vast eruption of the volcano on the pacific island of krakatoa. Dale dealing february 2 2018.
American heritage dictionary of idioms boston. Meaning of idiom once in a blue moon once in a blue moon means not very often. The time between a true blue moon is much longer than 32 months. He gives us a treat only once in a blue moon.
Only once in a long period of time. That sort of thing only happens once in a blue moon. Once in a blue moon the addressing system itself changes. Only after several centuries and after the original usage had long since died out did once in a blue moon come to mean something that didn t happen very often.
Houghton mifflin harcourt 2013.