The worst insult in the history of worst insults!
Guy 1: I just broke up with my girlfriend...

Guy 2: Dude... you're such a Bieber...

Guy 1: Dude... we're done... that was mean, man...
by Meisamazingbejealous October 11, 2011
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1. The physical embodiment of all that is gay, fake and weak.

2. A male that will never reach puberty, not even with testosterone therapy. Thus having underdeveloped balls indefinitely.

3. A fag who should of just stuck to being a quire boy.
1. I can't believe you went and got fudge-packed, You are such a Bieber!

2. That kid turned 22 and still didn't hit puberty. It's classic Bieber syndrome.
by TheKegBringer October 17, 2010
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A unit of measurement describing the size of a penis.
1 Bieber = 0.6 inches
by SUPA FUG DUP May 24, 2014
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A teenage boy that doesn't hit puberty for a large amount of his life and has an extremely small penis.
by onjaonkrack November 05, 2011
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A person who usually sings too much and talk like a girl. Someone who think he is talented but only have a micropenis. See Edward Cullen. But shouldn't sparkle... or drink blood.
"I feel incredibly bieber today!"
"That guy is the biebest ever!''
by biebest January 23, 2013
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A person that made everybody make a definition of Justin Bieber being gay or having a small penis (which is all true)
1) Bieber is a homo

2) A small dick

3) Haven't hit puberty yet/or never will in his life

4) Has lots of definitions of being gay/having a small dick/not hitting puberty yet
by Oshkoshbigosh February 07, 2011
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annoying, short, stupid, retarted, gay, high pitched, slow,ugly, fagtastic
Dude, quit being all bieber! or STFU! YOUR VOICE IS SO BIEBER!!
by Mrs.BillKaulitz January 28, 2010
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