The act of throwing up because something is so horrendous.
If you've ever seen Jersey Shore, then you've probably Bieber'd or have come very close to Bieber'n.
by Zuthner March 3, 2011
Get the Bieber mug.
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
Get the bieber mug.
A teenage boy that doesn't hit puberty for a large amount of his life and has an extremely small penis.
by onjaonkrack November 6, 2011
Get the Bieber mug.
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 18, 2010
Get the Bieber mug.
A unit of measurement describing the size of a penis.
1 Bieber = 0.6 inches
by SUPA FUG DUP May 24, 2014
Get the Bieber mug.
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 8, 2011
Get the Bieber mug.
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 29, 2010
Get the Bieber mug.