1 definition by mynameisWHAAT?

A fatal disease similar to schizophrenia.
victims are usually immature 6 to 16 year old girls
symptoms are including but not limited to:
1.singing every song Justin Beiber has ever made
2.making a shrine for him and start making out with it
3.hating all other girls that think they're his self assigned "number one fan"
4.being incredibly stupid and not focusing on anything else besides how his hair looks
5.buying a ton of posters and merchandise and kissing it before going to sleep
6.trying to figure out his phone number to call him every day in an attempt to find out where he lives, kidnap him, and keep him in your own sick twisted little petting zoo where you keep the Jonas brothers and any other singer that is a guy

Scientists are currently trying to find a cure yet have made no progress so far.
obsessive 10 year old girl: OMG IM GONNA KIDNAP HIM AND SHOOT EVERYONE AT HIS CONCERT OMG LOL ROTFALAWYASWPMP!
creeped out guy:oh my god you have beiber fever SOMEONE CALL 911!
by mynameisWHAAT? April 27, 2011
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