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Personal Best; a new high score at anything, good or bad.
John: "Hey look, Nick just set a new PB on rejections tonight."

Matt: "Ya man, what's that his third at this bar?"
by TheBiggestDick March 31, 2012
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Nov 27 Word of the Day
A stupid person; it refers to the lack of surface area on an individual's brain. The general thought is that the more surface area (wrinkles, creases, etc.) a brain has, the smarter the person is. Conversely, a person with a smooth brain (no wrinkles) has less surface area and would therefore be stupid.
That fucking smooth brain put his shirt on backwards again...

That smooth brain is dumber than a pile of shit.
by Tip Tank May 14, 2011
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2
P.B.
1. acronym for Perv Boy or Pervert Boy
-a term you use on a sincere sweet man but you realize that he's also a closet horny, playful, naughty dude.

2. also stands for Pretty Boy
-handsome, attractive, smart, hott, cute guy

3. definitions of 1 and 2 combined
1. Aisha: "Aiyy Brian! You're bad, but I love you because you're my P.B.!"
Brian: "Yea, I know you like it! hehe because I'm you're P.B.! I love you, Aisha, you're my P.G.!"
(for the meaning of P.G., please look up P.G. in the urbandictionary).

2. Wabbit: "bBoy is a P.B.! Grrr, I love his belly.. He's hott!!!"
by chinat February 21, 2006
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3
adj.
an acronym for 'peanut butter' or when something is the opposite of jelly

i.e when something is suspect (suss) or lacking swag on a dime.
ex.

G-pa: Yo man, that girl that came to class didnt even brush her hair like. Shes lookin real dirt wit dat nappy hair and yellow teeth

Puff: Eww, PB! PB!

G-Pa: Word, straight peanut butter minus the jellay.
by SuperPuff April 05, 2010
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6
Private Blunt Smoking. Meaning smoking alone
Ya'll can't smoke with me, I'm P.B.S 'ing
by ThEmEsHaLl December 20, 2010
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