1 definition by Sophomoric Penguin
A combination of the word "zombie" and "Bieber" describing fans of the loved and hated Canadian popstar Justin Bieber. They are seen writing Facebook posts of how much they love Bieber, have posters of him all over their room, and go to all of his concerts.
Example:
Friend 1: Hey, I just got tickets to the Justin Bieber concert! *squeals like little school-girl*
Friend 2: This friendship is now in serious doubt you Zombieber.
Friend 1: Hey, I just got tickets to the Justin Bieber concert! *squeals like little school-girl*
Friend 2: This friendship is now in serious doubt you Zombieber.
by Sophomoric Penguin May 22, 2013