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Pronounced up-in-ya. The answer to almost any question from someone you don’t care to talk to or you would like to mess with
girl : Hey where are you going tonight?
guy : upinya
girl : where’s that? I’ve never been there?
guy : Oh you’ll see

annoying guy: (with pencil in hand) excuse me do you know where the pencil sharpener is?
guy 2 : Why yes I do, I believe it is upinya.
annoying guy: Oh then will you be a deer and point me in that direction?
guy 2: NO! Now go f@#k yourself
by deck man January 10, 2006
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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
noun: deep inside the booty but before the actual "guts"
Damn girl, how 'bout I get all upinya!
by tg December 21, 2004
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