Top Definition
Coined by Kim Vo on "Shear Genius," a condition where a person thinks they can only improve their hairstyle by bleaching/lightening their hair. Also has to deal with the idea of being blonde and thin to be beautiful, hence the (ano)"rexia" part.
My friend Janet wants to bleach her hair for the third time this week! I think she's suffering from blonderexia.
by bobco July 10, 2008
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