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4.
Diagnoses: Bieber fever
Symptoms: obsessive thoughts of Justin Bieber, stroke, heart attack, and seizure possibilities if meeting him, crying hysterically, screaming at a shrieking tone, fainting, and falling in love. Falling in love is most likely permanent and irreversible.

If you have heart conditions or medical issues, you should consult with your doctor before watching him on TV, looking at a picture of him, or meeting him in person. It is most common in young girls.

So far this fever is incurable.
20,000 girls show up to Justin Bieber's concert screaming at the top of their lungs and FREAKING OUT. They've got Bieber Fever.
by JustinBieberislife April 16, 2010
 
1.
The act, or disease of being litterally obsessed with justin bieber. Most commonly found in girls, but occasionally a guy or two
Girl- Dude omgomgomgomgomg i loooooove justin bieber he doesnt know it yet but im gonna marry him!

Guy- Wow... talk about bieber fever
by luluko March 05, 2010
 
2.
The act of falling in love with the pop singer Justin Bieber. This condition can affect anyone from the ages of 1 to 92.
You have Bieber fever if you have one or more of the following symptoms:
1. Your heart melts when you see his smile.
2. Your heart flutters when you hear him sing.

3. You think to yourself, "Aww he is the definition of innocence and perfection, he must be an angel."
4. You know the words to at least one of his songs.
5. You find yourself dancing to his music with people around or not.

6. You watch youtube videos of him all day long.
7. You own either My World, My World 2.0....or both.

8. You have bought tickets to his concert(thats an obvious one).
9. You are a 20 year old girl who has secret thoughts of getting with him.

10. You have given him a nickname, such as Biebs, Biebsta,or whatever else you have creatively come up with.

11. You cry because you want to meet him.

12. You think you and him are meant to be (aka marriage)

People....the list goes on and on. Basically you have Bieber fever if you have ANY positive thoughts about the guy.
bieber fever-an obsessed fan
by Megan Bieber April 21, 2010
 
3.
noun- a sickness, that has recently been becoming more common, where a girl, or boy, is extreamely obsessed with Justin Bieber, and everything related to him. There is no cure found for this yet.
girl- "I don't know what's wrong with me. Lately, all I can think about is Justin Bieber. And every time i hear his name I want to do him even more..."

doctor- "you clearly have a serviere case of Bieber Fever..."
by kaylaxmarie18 April 12, 2010
 
5.
A disease that's more dangerous than AIDS and sadder than kitten cancer
Guy 1: My girlfriend has bieber fever
Guy2: Be sure to wear a condom, catch that and its game over
by dizzle2309 July 22, 2010
 
6.
A colloquial term for dysentery
Many third world countries are being plagued with Bieber Fever.
by ManBearPig2012 December 20, 2011
 
7.
the long way of saying your fucking gay :D
Mike: Dude, ryan has bieber fever

You:what a faggot
by Mike Hawk2232 September 06, 2010