Top Definition
A five dollar bill.

Noted in the movie Ferris Buelers day off, in where they are parking the Ferrari in the garage, and he gives the guy aa $5 Bill. He then remarks towards Cameron, Don't worry about it, I gave the guy a finske.
You owe me a finske.

Or, in an effort to communicate ammounts over $5, but still retaining the coolness of using the word finske..I lost a couple of finskes last night playing poker.
by Ethereal October 10, 2004

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