Fnis derived from a country in Europe called Denmark. First spotted on the streets in Madison, Wisconsin early in 2005. Used as a noun. Somewhat like a dime
Only the pimpest of players use this term.
See also... Hottie
1. "Damn man! Did you see Eva today?! She's such a fnis"
2. "Eva, oh my god, look at Chrstian! Walkin' up and down the halls like a true fnis."