When Justin Bieber rapes you in the middle of the night with acid lube.
My ass hurts SO bad!" "Why what happend?" "I caught a bad case of Bieber Fever last night.
by DJ Spasmodic October 15, 2010
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A horrible and highly contagious flesh eating virus contracted during sexual intercourse
-Dude, your girlfriend's skin is on fire
-No, she's just got some Bieber Fever.
by Your name can't be blank bitch February 10, 2011
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The bad sickness you get when listening to Justin Bieber. *Only some get it* It may spread around. THERE IS NO CURE TO BIEBER FEVER YET.
Example of Bieber Fever:

Justin Bieber: ♫Baby, baby baby ohhhh♪

You: OGMOGMOMGMGOMG LET'S FAN GIRL JUSTIN BIEBER OMG I LOVE HIM HE IS SO CUTE HIS HAIR IS ADORABLE OMG HIS SMILE... OH HE'S COMING TO OUR TOWN LET'S SEE HIS CONCERT WOWOWOWOWW MY ROOM IS PLAIN, I'M GONNA COVER MY WALLS WITH JB POSTERS!!!!!!!!!

Me: smh
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an illness affecting little girls, and some guys,to become addicted to the high pictched voice of Justin Bieber.. and an attraction to:

-gayness
-skater hair
-immaturity/ lack of puberty
-American wannabees
-little boys

may result in lack of anything normal and becoming homosexual or insane.
Person 1: dude, she just b*tch slapped my mom for saying she didn't like Justin Bieber.

Person 2: that's a classic symptom of Bieber Fever.

Girl: Don't f*ck with the Biebs!!!!!!
by vakid February 23, 2011
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When a fan is so obsessed with the godly Justin Bieber, she refers to herself as having Bieber Fever.

You have Bieber Fever if...
-You love Beebs
-You own the two CD's
-You own his book
-You have got to his concert
-You get ever magazine with Bieber's face on it
-You have 30+ posters of him
-You know every detail about him
-You know every lyric he sings

Side Effects
-Annoying
-Loss of friends
-You automatically become a 'belieber'

*See 'belieber' for more info on the topic
-Crying
-Youtube addiction
-Rapid Heart Beats. (RHB)
Dude, that Lexy girl has Bieber Fever.

I know man, he's cool.
by Massiecure. January 27, 2011
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Puberty. Because Justin Bieber has singlehandedly redefined it.
Bieber Fever has caused several of Justin Bieber's concerts to be cancelled, because he can't hit the high notes anymore.
by IAmAMartian August 12, 2010
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A person, likely a 12 year old girl, who is obssesed with a 16 year old boy who hits on older women (see Chelsea Handler) and sings about love (see One Time...he tells u more than one time), butsomehow has white boy swag, boyish charm, and "dashing" good looks.

(See Twitter, where Justin Bieber is fevering up the Trending Topics...every day)
"@justinbieber ur lyk so kut33 and hilarious and i lov33 u more than LIFE! TAKE THAT JONAS BROTHERS1!1!!!"

"@girlwithbieberinhertwittername ...i think u have a serious case of bieber fever..."
by tupacislove April 14, 2010
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