1..A comment made to mask the act of being interested in a person's conversation; mostly uses in a sarcastic tone towards the person.

2..Knowing that a person is bragging or bullshitting
Tom says laughing, "..So got a really nice deal for these sunglasses there the most expensive ones there, they cost so much, coolest surfers ride with them, Im gonna be a sick rider like they are know and I got the most expensive board out there-"
As you look over to you friend you muffle, "Boiski,boiski, he thinks he so cool, what a fuckin' toolbag." You chuckle.
by Gonzo de' Po February 21, 2008
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Hey yo boiskie hey get me some chicken so I can shit fireballs
by Bsfsod April 1, 2019
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