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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Normal guy 1 : Hey look at that toolbag wearing pink.
Normal guy 2: Wow what a fucking bieber.
by noyfbf February 10, 2011
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Justin Bieber, is 2010 version of Hanson, a young blond haired boy trying to cash in before his voice breaks and the screaming crowd dies down and you can actually hear him.
by rossism April 29, 2010
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Any reference to Justin Bieber, like someone singing a knock-off version of "Baby, Baby, Baby," or comparing someone to Bieber's appearance or voice.
Stop throwing around Bieberisms, I'm tired of hearing about that kid!
by benjaminbailey October 31, 2010
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1. an adolescent beaver
2. slang for an adolescent girl's vagina
Guy: "Nice bieber!"
Girl: "Thank you. I just had it stuffed."
by Quaabie July 15, 2010
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To have a limp or non-erect penis; usually when it is at its smallest size. Most likely derived from Justin Bieber due to possibly his young age and large ego

It's also commonly used as "bieber", then hyphenated with penis; or a synonym of penis.
1 - As long as I am drunk, I will stay biebered

2 - Wow, his bieber-cock was so small.
by BreezeCloud April 30, 2011
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the act of making a fool of oneself, saying something that sounds dumb
Boy: abraham lincoln was the first president of the united states
Girl: he just bieber'ed himself
by bieberfever10 July 11, 2010
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