In marijuana culture, a fink is someone who says they will match you and comes up with an excuse, often unrealistic to avoid pithing in marijuana. Because they promise to pitch in weed and do not, they are more hated than sponges. A fink is recognizable due to their lack of moral ethics in general, paranoid nature and endless preoccupation with how they are viewed by others.
Guy 1 "Man, I can't believe Guy 3 tried to pretend the wind blew his weed away and didn't pitch in for that bowl,"

Guy 2 "Thats nothing. Yesterday he not only didn't pitch in, he jacked my lighter after the session and tried to pretend he didn't. I nearly punched him when I found out."

Guy 1 "Man he is sucha fink."
Guy 2 "Agreed"

Guy 3 *enters on scene*

"Hey guys want to smoke some weed? i got some prime buds, but they are at home so we can smoke then go get them."
by kingaj100 October 16, 2008
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
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
1. a strikebreaker
2. an informer
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
To snitch on someone or a group of people.
"He's probably in the headmaster's office right now, finking on us!"
by pyro1337 June 11, 2007
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
(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
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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