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.
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 19, 2012

The paradox that occurs when trying to simultaneously imply that Justin Bieber is both female and homosexual, yet not a lesbian.
*male joins a group of friends*
1: "I had sex with a girl that just turned 18 last night."
2: "You mean Justin Bieber?"
3: "There's no way it was a girl. So is Justin Bieber a good top?"
1: "You guys suck. And you need to decide on if Bieber is gay or a girl, the Bieber paradox is messing with my head."
1: "I had sex with a girl that just turned 18 last night."
2: "You mean Justin Bieber?"
3: "There's no way it was a girl. So is Justin Bieber a good top?"
1: "You guys suck. And you need to decide on if Bieber is gay or a girl, the Bieber paradox is messing with my head."
by Sgt. Frootloop March 30, 2011

girl:00hHh 33mMm gGgG!! I <3 jUsTiN BiEbEr!!!!!!!
sensible person:Why?
girl:b3c@uS3........umm.............*head explodes*
sensible person: tsk tsk tsk, that bieber bopper shoulda been blasting that RATM.
Bieber Aids killed her smh
*Blast Killing in the Name of*
sensible person:Why?
girl:b3c@uS3........umm.............*head explodes*
sensible person: tsk tsk tsk, that bieber bopper shoulda been blasting that RATM.
Bieber Aids killed her smh
*Blast Killing in the Name of*
by WashBro3 September 6, 2010

A person or animal that dedicates a large amount of time to bringing the death or severe injury of Justin Bieber. Though most of the time Bieber Hunters are unsuccessful, the other day one of them succeeded in making the pre-pubesent pop sensation walk into a door. However, it is often debated weither the inciedent was a direct result of a Bieber Hunter, or was a result of the stars own stupidity.
by bieberbomber June 6, 2010

A very rare disease, in which a young teen (around 13-16) is unable to go through puberty for some ungodly reason. The side effects for the adolescent in question are usually microscopic testicles, however the worse side effects are experienced by near by persons, who are then forced to hear the screeching howls of the adolescent's singing voice.
Victim of Bieber Syndrome: "...and I was like BABY BABY OOOOOOOOOHHHH BABY BABY NOOOOOOHHH!!!"
Doctor: "Is euthanasia legal here?"
Doctor: "Is euthanasia legal here?"
by imdefinitelynotjustinebeaver September 17, 2010

When you or your friends are touched inappropriately by a Bieber look-alike, or Justin Beiber himself.
by k.andy April 15, 2010

by Krebon_Z November 2, 2010
