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48.
To faux stab, faux shank, or injury someone only for their discomfort but your and everyone else's amusement whilst singing a Justin Bieber lyric.
*Sneak up on someone with a pen in your hand, as you jab their side you say* "BIEBER!"

or

Singing a Justin Bieber song, you faux-stab on "oooh!" as such..."It's like baby baby baby OOOH!"
by fastening August 13, 2010
 
1.
A very small penis, around 3 inches or less in length and circumference, like Justin Biebers penis.
Girl: "I was gonna give my new boyfriend a blowjob last night, but pulled down his pants and saw that he had a Bieber. I laughed and broke up with him immediately."
by bieberhasnoballs May 23, 2010
 
2.
A unit of measurement used to gauge the level of discomfort caused by hemorroids. Each unit is roughly equivalent to the pain and discomfort of watching a Justin Bieber video.
I'd give it a 4 on the Bieber scale.
by Darwin Bonaparte June 01, 2010
 
3.
a synonym to the word gay.
I just sucked a dick, I am a total bieber
by klik_N64 August 27, 2010
 
4.
Like a weiner only smaller.

A very small penis.

Named in honour of popular singer Justin Bieber, a small weiner believed by many to have an extremely small penis.
Q: I heard Justin Bieber's weiner is just a bieber. Can that be true?

A: Yes indeed: modern science has shown it to be negligibly small.
by Pipe Downn November 12, 2010
 
5.
Blatant homosexual
Normal guy 1 : Hey look at that toolbag wearing pink.
Normal guy 2: Wow what a fucking bieber.
by noyfbf February 10, 2011
 
6.
adj; a word to describe something that is utterly stupid and wack -.-
guy: "hey watcha doin'?"

dude: "im reading Twilite"
guy: "DUDE!!!!! that is so BIEBER!!!"
by Ryu1er February 09, 2011
 
7.
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