meaning - What's a yellow line running down somebody's back? - English Language Learners Stack Exchange

The only line between good and evil is the yellow one running down your back. What line does it speak of? I'm also not sure what meaning does "run down" have in this context. The source of

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Words Their Way with English Learners: Word Study for Phonics, Vocabulary, and Spelling (Words Their Way Series)

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[McWhorter, John] on . *FREE* shipping on qualifying offers. Words on the Move: Why English Won't - and Can't - Sit Still (Like,

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