A fork of Rural Dictionary
A noun used to describe sexual intercourse - is usually used by someone who has an obsession with sharks or sea creatures.
Can be used interchangeably with the word ass.
Kyle: I was gettin' some fin last night - it was hot!
Morality Preacher: Whoa, whoa little pup - you're not even a shark yet. You should wait a few years before tappin' that fin ;)
Kyle: Yay Morals!
the opposite of "deck"... very uncool... if you are deck... you have a serious case of the uncool gene
"you're so fin!"