One who has a fetish for fish or finned mammals. The aquatic equivalent to a furry.
Person A: That dolphin is incredibly hot!

Person B: What the hell is wrong with you!?
Person A: Nothing's wrong with me, I'm a finny!
by Magiphart January 8, 2014
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A Girl. Very Outgoing, Hot, Amazing, Smart, Very trustworthy
Finny is nice.
by Dá Báe February 11, 2015
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(noun): Depression-era Bostonian slang for a five dollar bill.
"'I'm outta gas, could you spot me a finny?' asked Nana."
by Kingmaker's Daughter March 27, 2015
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A sexy person who like trees and cakes. Is well awesome and yeah you want her
by chickenstalker March 22, 2014
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To be really fucked up and messy on drugs or booze
"Yo I was so finnied at Kyle's party on Saturday-I dont remember anything."
by Fini August 8, 2004
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This is the act of being skinny and fat at the same time, or being skinny but out of shape. Someone with skinny extremities who also has a beer gut would qualify as finny.
"That chick looked hot from here, but when we got closer we realized she was just finny."

"Check out the finny dude with his beer gut."
by Little Red Capone May 1, 2012
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Function: adjective
Date: 1590
1 : provided with or characterized by fins
2 : relating to or being fish

its pronunciation--- fi-ne
nemo is finny
by sabrina October 9, 2003
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