Top Definition
N. The irrational fear of teen pop sensations (Justin Bieber, the Jonas Brothers, etc.) that are only popular with adolescent girls for a reason.

N. The uncontrollable spasmodic actions that sometimes accompany one who suffers from Bieberphobia.
Adolescent girl: Wanna come to the Justin Bieber concert?

Bieberphobe: WAAAAAA!!!!!

Adolescent girl: Bieberphobia, eh?
by HenryE February 13, 2010

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