Top definition
A rat, a snitch, an informer, a stoolie. The very lowest form of human scum, except a tax collector.
Little Ernie is a fink. He ratted on Big Giulio's plan to heist the ice.
by Bumkicker Slade April 30, 2005
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2
1) A bastard, in the figurative sense. Good word to know if you're in a situation in which it wouldn't be smart to actually say "bastard."

2) A treacherous person.
"Your brother's been back-biting me again. One of these days, I'll deck that little fink!"
by Qit January 13, 2004
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3
noun
1. a strikebreaker
2. an informer
verb
1. (with "out") quit; give up; let down
2. (with "on") inform against
"You're such a fink-- I can't believe you finked out by finking on me!"
by nameless schmuck July 09, 2003
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5
(1)someone who tells on a person for no reason at all.
(2) A slang term used in the 1960's of some one who is very unpleasent
(3) A company spy
That fink Joni justed finked on me to the boss! I'm gonig to get payback on that fink!
by BruinKiller3469 March 26, 2009
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6
1. An informant or snitch

2. Something old people call you when you offend their delicate sensibilities
Youthful Individual: "The Baby Boomer generation ruined subsequent generations with their uneducated and apathetic view towards child rearing".

Venerable Old Man: "You fink! I'll beat you with my dialysis machine if I ever find a way out of this bed!"
by juxtapose519 May 30, 2010
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7
Someone who ditches their friends for a less noble cause.
He is known to fink on us for his girlfriend.
by Kwylee July 07, 2005
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