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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
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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.
by Darwin Bonaparte June 01, 2010
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3
A "bieber" is a dick that is so small that the foreskin is actually longer than the penis - meaning it looks like an inside out condom stuck on your girlfriend's clit. In order to bang a guy with a "bieber", a chick would have to stick the end of a straw down her snatch and stick the other end under the dude's foreskin into his dickhole, while he masturbates himself up the ass with a dildo until he gets off (seeing as he has no shaft). Circumsized males with beebers end up looking like they have a 3 year old girl's vagina. This deformity was named after Justine Bieber, a noted transexual pop singer who became infamous after she leaked a sex tape of Usher playing with her "bieber".
Melissa agreed to have sex with Roger after the junior prom until he dropped his pants and she saw he had a bieber. After she told all his friends, Roger went home and slit his wrists until he bleed to death.
by SlickSammy88 April 22, 2011
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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
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gay homo squeaky voice small penis no talent weird girls like daniella becci char
whos bieber
by danny skidd April 13, 2010
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7
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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