Top Definition
To study/obsess over Justin Bieber.
I like Belieberism.
by thegreatBIEBER January 17, 2010

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The worship of Justin Bieber as a god, as practiced by teenage and pre-teen girls called Beliebers who obsess over him.
Sydney Dalton is a sacrilege to Belieberism!
by BlueLaughter September 01, 2010

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The name given to the extreme actions undertaken by "beliebers". This includes sending death threats to any female he comes in contact with, such as Kim Kardashian, Rihanna or Esperanza Spalding, and any other action that might threaten their position as Justin Bieber's fake girlfriend.
"Belieberism is too damn high!"

"Belieberism has shown its ugly face once again"
by Annonymous1235 January 12, 2012

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Stupid girls who crave over a tiny one inch that they will never get to suck or ride and they waste their time with gay music gay concerts movies and wish they could have a peek at his tiny dick.
belieberism
by PEDOo bEarr June 02, 2011

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The Urban Dictionary Mug

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The Urban Dictionary Mug

One side has the word, one side has the definition. Microwave and dishwasher safe. Lotsa space for your liquids.

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The Urban Dictionary T-Shirt

Soft and offensive. Just like you.

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The Urban Dictionary T-Shirt

Smooth, soft, slim fit American Apparel shirt. Custom printed. 100% fine jersey cotton, except for heather grey (90% cotton).

Buy the t-shirt