This word is used in skateboarding when a trick is pulled off that was very smooth and easy looking. Like it took no try what so ever.
That Tre to lip slide was so buttery assed, You could of been on the phone when you did it.
by J-Paul July 11, 2008
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-(Adj.) 1. The state or quality of being buttery 2. When someone lands a trick on a snowboard or skateboard and rides away smooth as shit

Origins- from the latin root (buttery) with germanic root (ass)
man 1- "That was a sick tre flip, he landed bolts!"
man 2- "Yeah dude that was such a buttery ass tre"
by t sand December 22, 2008
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1. When a trick you do on a skateboard is so steezy, its just so nice and brutal.
Andrew: Dude check this heelflip!
Dill: OMG that was a buttery ass heel
Kevin: Mad Steezy Son!
Alex: That was a high heelflip
by SK8R Drew xP March 30, 2009
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to rub butter in another mans ass and fuck him
dude I'm going to ask jack if he wants to buttery fuck ass!
by assholerape June 14, 2010
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According to some people on Call of Duty MW2 a person talking over another is someone who is or ha a buttery ass.
Last night on COD:

Guy 1: Yo you see what happened.....
(Interrupter)

Another Gamer: Hey can yall hear me.

Guy 2: Hey David hut your buttery ass up I can't hear.
by bcford17 November 4, 2010
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