noun.

a. Synonym for deafness and/or mental handicap.
b. A disease which causes retardation in girls and borderline homosexuality in boys. No known cure as of yet.
a)

Guy: Hey what's wrong with that girl, why's she listening to Justin Beaver?
Guy 2: I think she's got Bieber fever
Guy: HAHA, what a retard, probably never heard REAL music in her life.

b)

Mom: Is he okay? What's happening?
Doctor: Maam, I'm afraid we've had to put down your son... I'm sorry, there was nothing we could do, he had a real bad case of Bieber fever. We had to kill him, it was for his own good.
Mom: Oh... Well, I guess it's for the best.
Doctor: Damn right it's for the best, only fags and retard like that little chipmunk.
by tata12 November 16, 2010
Beiber fever: A rare disease in which the testicles of a male of 13 or older have not descended yet. In result of the lack of testosterone, the male may develop a girlish, high pitched voice, a douchey hair cut, and an even douchier hair flip to accompany it. In a worst case scenario, the male is diagnosed with a very serve case of pussietis (causes uncontrollable acts of being a pussy). Bieber Fever is a very serious thing and should not go untreated. If you or someone you know has Bieber fever, please contact Dr. Dre at 1-800-chronic.
yeah, he must have bieber fever
by bmancommando February 24, 2011
A deadly disease that has ruined the world and caused many teenage girls to enjoy the horrible singing of Justin Bieber and his wanna be skater look. Those that suffer from this disease must be removed from the gene pool so that the rest of the world does not become infected.
Why do teenage girls have Bieber Fever? They are in love with a gay teen that hates the United States and will never hit puberty.
by The Sackman February 21, 2011
The demonic trance that the Immortal One (Justin Bieber) puts young girls into while he steals their souls, which he feeds on to sustain himself.
Did you catch the Bieber Fever at the concert last night?
Yeah, but now I feel so empty inside.
by Dr. Jacob Cornelius January 30, 2011
Noun- The morbid obsession with Justin Bieber. Sometimes asociated with masturbatal deaths and Kim Kardashian's enormous horse penuscis(aprox. 24' long).
My doctor said I had one of the most advanced cases of Bieber Fever since Nam.
by Pedophiles United May 09, 2010
A pandemic sickness that infects the weak and unprepared who are easily satisfied by seven-year-olds singing. The probability of infection depends on the carrier and the exposure victims. It feeds on people's minds and souls, and its path of destruction is powered by attention, whether it be good or bad.
Symptoms include sudden interest in a certain brownish-haired seven-year-old looking boy and other people often commenting on how stupid you are. You may also want to check for posters in your room featuring the aforementioned child. It is best if you do not contract this disease, or else you will not have the sanity to treat it, and no one else can help you. If you have a friend who is infected by this, we're sorry.
Methods of prevention of Bieber Fever can include listening to real music, instead of a small child attempting to sing. To prevent this disease from spreading too far, mentioning of the child known as Justin Bieber should be kept to a minimum so as to keep people from giving him attention.
Person A: Omgomg, I have Bieber Fever, omg, Justin is soooo hot!
Person B: Omg me too! What about you, C?
Person C: ......NO.
by LALALALA...lol? February 14, 2011
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 07, 2011
A very deadly virus that have been diagnosed recently, it is claimed that when a person is infected with the virus (especially a teenage girl, excluding a full grown mature woman), their intelligence and thinking capability will immediately be dropped to 50 IQ or below. Some even rated to be 10 or below.
Infected 1: OMG, HIS SOO CUTE!!!

Infected 2: I KNOW, WOW!!!

Infected 1: <REPEAT>

Infected 2: <REPEAT>

An example of Bieber Fever, the infected is unable to think properly, except their love towards Justin, and is now mentally retarded.
by U MAD? July 15, 2012

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