blue moon

blue moon


Definition of BLUE MOON

:  a very long period of time —usually used in the phrase once in a blue moon <such people happen along only once in a blue moonSaturday Review>
:  a second full moon in a calendar month

Examples of BLUE MOON

  1. <once in a blue moon we'll get dressed up and eat in a fancy restaurant>

First Known Use of BLUE MOON



Next Word in the Dictionary: blue morpho
Previous Word in the Dictionary: blue monkey
All Words Near: blue moon

Seen & Heard

What made you want to look up blue moon? Please tell us where you read or heard it (including the quote, if possible).