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 22, 2010
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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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The new inflammatory epidemic that attacks the cardiac area
(heart).

Cause: Being obsessed and/or infatuated with Justin Bieber
Symptoms: Watching Justin Bieber's music videos on Youtube incessantly,listening to Bieber excessively, and having your room plastered in Justin Bieber posters are a few of the symptoms
Demographics: Adolescent girls are at greatest risk, although the disease is very fast spreading and infectious
Cure: Listening to some classical or classic rock music is one very permanent cure, but the body and brain may reject it.
13 year old watching television "It's the new Justin Bieber song! (SCREAM) I have to get it! I love you Justin!
Brother: (pukes)

Later
Doctor to girl's mother "Well, your son is completely fine, the problem is your daughter. She is in the later stages of bieber fever
Mom: (cries)
by bibliophiliamaniac June 7, 2011
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An obsession with Justin Bieber so extreme that it's to the point where you are rioting at his concerts and trolling classic rock videos on YouTube. You probably still have bruises from the rubber bullets.
Example 1
Riot Cop 1: Are the fire hoses in place just in case?
Riot Cop 2: Yes sir, the Bieber fever always gets out of hand.
Riot Cop 1: Good. I hate these damn concerts.

Example 2
JustnBeberFan4EVER: aerosmth sux cuz they old they gonna die out!!! justn beiber is gona liv on 4 ever!!!!! yayy!!!
Delta07: Please, go to Google and type in "define: literacy".
by Kurt051 February 17, 2011
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A horrifying disease that's like swine flu only much more deadly and infinitely gayer.
#1:Dude, I think I have Bieber fever.
#2: Oh shit, get away from me!
#1: I can't get his songs out of my head, MAKE IT STOP!
by Metalover95 April 14, 2010
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A nation wide ailment affecting today's youth, created by disney channel and other terrible musicians like Usher, Ludacris and Kanye.
Ugly ass chick: O my god, justin bieber is so hawt!
Friend: No, you are just plagued with bieber fever.
by michelle obamaa November 17, 2010
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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 23, 2010
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