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short for the name kostreski, basically an effing G from the land of Poland, they are up for anything anytime and completely fearless
"look at that psycho!" "damn he's a koski"
by tonykoski March 06, 2007
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the word you yell louder than usual when you are trying to attract a person of the opposite sex over to your table in a risquΓ© manner, and upon opening your mouth, you forget the entire english language.

Bartender: "Oh my gosh sir, are you okay?"
Ely: "Yes, I'm just attracting the ladies ~wink wink~"
by brisk.VS.arizona June 28, 2011
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