Idiom of the day : (13 Dec 2017)

✔ Once in a blue moon


■ Meaning:

If something happens once in a blue moon, it happens very rarely.

■ For example:

  • We hardly ever go out these days, though once in a blue moon we might go and see a movie.
  • My daughter lives in Brazil and she only comes to see us once in a blue moon; maybe every two or three years if we’re lucky.