Top Definition
An infectious virus that targets Youtube videos.
The virus is spread through humans posting comments.
Symptoms include the mention of Justin Bieber on a video that has nothing to do with him, and the decline of comments about the video itself.
Lee: Holy crap the police have been infected with the Bieber Virus!
Alex: What? Oh no!
Lee: This is sick.
by BVirus October 24, 2010

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