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.

Large, beautiful breasts that are keep well consealed and initially appear to be much smaller and less impressive than they actually are until unleashed.

The act, or disease of being litterally obsessed with justin bieber. Most commonly found in girls, but occasionally a guy or two

1. A female, or Homosexual Male, who is obsessed with Justin Bieber.

2. A Colloquial term for Dysentery.

a disease that is caused by listening and progressively becoming obsessed to Justin Bieber and his music. 1 in 4 children worldwide die from this every 15 seconds. if you or anyone you know start getting symptoms (starting to think justin's music is good and think the lyrics are smart) contact the nearest doctor immedeatly.

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.

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.