This is not an old saying but a line lifted from a song lyric, and it is used more as a quotation than as an everyday idiom. People invoke it when they want to describe someone who seems set apart from everyone else, either as unlucky or cursed, or as strange and singular in a way that marks them out from the crowd. Because the original lyric itself is genuinely ambiguous, the phrase carries that same double edge whenever it is repeated: it can sound ominous or admiring depending on the tone in which it is said.
What’s the origin of the phrase ‘there’s a blue moon in your eye’?
The phrase comes from the Alabama 3 song “Woke Up This Morning”, from their 1997 album Exile on Coldharbour Lane. The exact lyric runs “You’re one in a million, you’ve got to burn to shine, but you were born under a bad sign, with a blue moon in your eyes.” A remixed version of the song was later adopted as the theme for the television series The Sopranos, after producer David Chase heard the original, which is largely how the line became widely known beyond the band’s own fanbase.
What the image itself means has been argued over almost since the record came out. One popular reading treats it as an astrological curse: to be “born under a bad sign, with a blue moon in your eyes” is taken to mean the person was doomed at birth and can never lead a good life. A rival reading takes the opposite view, holding that a “blue moon in your eye” simply means the person is special, a once in a generation figure, echoing the “one in a million” line just before it. Others point out that “blue moon” more commonly signals a long stretch of time, as in the phrase ‘once in a blue moon’, and that the songwriters may simply have reached for an evocative image without intending a single fixed meaning at all.
No definitive gloss from the band has settled the argument, and the phrase is now used loosely, generally to suggest that someone is fated to stand out, whether that fate is read as blessing or curse.