I just found a song that Jim Dixon posted that compares a woman to a snake.

"Subject: Lyr Add: A BLACK WOMAN IS LIKE A BLACK SNAKE^^
From: Jim Dixon - PM
Date: 29 Oct 01 - 03:29 PM

2. A BLACK WOMAN IS LIKE A BLACK SNAKE
A black woman is like a black snake. She will strike and run.
A black woman is like a black snake. She will strike and run.
If you believe you'll have to hit her, she'll kill you and call it fun,I mean, and call it fun."

thread.cfm?threadid=40621#582152 excerpt

-snip-

But since it's a simile and not a ---whatever the English word is {allegory?}, I think that example would still be listed under
#1 in the meanings given to snakes in songs.