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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
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Jul 1 Word of the Day
sending two texts in a row without a reply inbetween.
Rachel: whats up?
Tessa: not to much! hbu?
Tessa: dude, i'm so bored.
Rachel: stop double texting me.
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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
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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.
by Megan Bieber April 21, 2010
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1. A female, or Homosexual Male, who is obsessed with Justin Bieber.

2. A Colloquial term for Dysentery.
John: Dude, I was Playing Organ trail today and died of Bieber Fever.

Jeff: How do you die of Bieber Fever?

John: People die from Dysentery all the time.
by NOPEMAN December 28, 2011
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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
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An extremely deadly STD or fever. Early forms started showing up in Stratford, Ontario Canada(mid 1993) after a woman by the name Patricia Lynn Mallette allegedly had sexual intercourse with a mentally retarded chimp and produced a high pitched, homosexual, mentally retarded son, known as Justin Bieber. Patricia is known worldwide for creating the disease and there had been many assassination attempts on her after numerous VHS tapes that had videos of her having sex with the chimp. The disease has notably started on March 1st, 1994 but it was a small concern after not many had symptoms. However on January 15th, 2007 a small spike of the disease had started in parts of the US and Canada. Between then and July 2011, over 500 million cases had been reported, all from girls between the ages of 3 and 100 and some rare cases from gay males, with parents becoming extremely terrified of their daughters actions and resorted to murdering them, locking them in a room or closet, throwing them out on the street, selling them or basically doing anything to get rid of the girl to prevent the spread of the disease. As of now, there are no cures. There is no hope for humanity. All we can do is blame that one Canadian woman and the child she produced with the chimp.
Parent - Oh my God, please help my pre-pubescent daughter! She has Bieber fever.
by 33y3yirp4 July 10, 2011
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