Top Definition
A girl who is in love with Miley Cyrus and finds her completely attractive in a lesbian like way. She is however not a lesbian, only for Miley which could make her Bi, but once again, only for Miley. This makes her Biley. Being Biley means you could just stare at her an become hypnotized as well as being turned on when you listen to her music or even so much as her laugh.
I am so Biley it's not even normal.
by smariek August 28, 2010

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