1. Someone who fears being anything but blonde.

2. Ladies who are addicted to the bleach & highlights.
omg! Look at barbie over there. She's so blonderexic, bleaches her hair like, every week.
by ThePoisonApple August 2, 2008
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Being so addicted to bleaching your hair that it's almost white, flat, monochromatic, and burnt to a frizzle.
Vicki Gunvalson from The Real Housewives of Orange County is blonderexic and needs to just shave her head and start over.
by Spiral Jacobs July 12, 2008
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