When ain't got nothing, you’ve got nothing to lose
You're invisible now, you got no secrets to conceal

from Bob Dylan – Like A Rolling Stone Lyrics on Rap Genius

Meaning

Typical woman who uses nothing but her good looks to get by, she has no job or money just her ability to have sex, which is enough for most men. (including me)
She is no longer is with someone important (Bob Dylan or Andy Warhol), therefor she isn’t important.

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