once in a blue moon is the origin of phrase rarity of a blue moon.
once in a blue moon origin of phrase?
rarity of a blue moon
owing to the rarity of a blue moon, the term "blue moon" is used colloquially to mean a rare event, as in the phrase "once in a blue moon".
blue moon
blue moon (disambiguation)









































a blue moon is an astronomical phenomenon.









































blue moon may also refer to:









































section::::songs.









































bullet::::- "blue moon" (1934 song), by richard rodgers and lorenz hart









































bullet::::- "blue moon" (beck song), 2014









































bullet::::- "blue moon" (steve holy song), 2000









































bullet::::- "blue moon", a song by de/vision









































bullet::::- "blue moon", a song by upchurch from "creeker ii"









































section::::albums.









































bullet::::- "blue moon" (steve holy album), 2000









































bullet::::- "blue moon" (toby keith album), 1996









































bullet::::- "blue moon" (the marcels album), the debut studio album by the doo-wop group the marcels









































bullet::::- "blue moon" (carmen mcrae album), 1956
blue moon (disambiguation)