Lyric discussion by heidismells 

it's true, Slug himself has also said that Lucy is not a real person, she isn't anybody, and when he uses Lucy in a song, he isn't even talking about a person she is just an allegory...

Listen to the song and read the lyrics. This is all about how his audience just can't get enough of Lucy, how he got stuck writing tons of songs about her because thats what people wanted, and he never intended Lucy to "define his existence", THIS IS about how she is completely misinterpreted.

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