Something that is a monster, yet is the most beautiful thing you will ever encounter in your life. Usually is someone or something with a horrible attitude, but is undeniably gorgeous.
Hey have you seen the beastiful New girl? She's so mean, but so beautiful
by awkotaco1905 November 4, 2013
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1.someone who owns up in something or extremely good at something
1.damn hes a beasty athlete

2.hes so beasty that he could play in the NBA
by mafferlocker August 20, 2006
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To act hard or hardcore, like you about to knock somebody out.

Boy: "Damn girl, you got a fat ass"

Girl: "Shut the fuck up!"

Boy's Friends: "Ooh she gettin beasty on a you, boy!"
by Genis April 21, 2006
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Someone who is really cool, or an absolute beast. Someone who is really good at something. "A legend"
Can be spelt beasty
Also used as beasty boy.
John's an absolute beastie.

He's a beast at football.
by drpecki December 24, 2006
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Stands for: Boys Entering Anarchistic State Towards Internal Excellence

From the Beastie Boys
No Example Needed, Buddy.
by YWouldUDoThis May 1, 2005
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"I do like camping but there are just too many beasties for me to fully enjoy myself".
by winstonmaiow December 16, 2006
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term used for best friend or groupie who really catches your eyes. lovable people you want to hang with,; someone you pig out and sleep over with. Someone who you share secrets and winks with
"Hey, you wanna go to my house?," says Annie.
"Of course! You're my beastie!" Karen replies.
by aznblonde3636 November 3, 2007
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