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A goofy looking rat character designed by Ed "Big Daddy" Roth.

A show car designed by Ed "Big Daddy" Roth.
Big Daddy's Rat Fink car of 1963 was a kart driven by a Cadillac starter motor.
Rat Fink by Cap'n Bullmoose May 6, 2005
Related Words

Rat-Fink 

Very derogatory descriptive slang from the 60's. You thought Mother Fucker was bad, Rat-Fink was the 60's word for mother fucker.
Rat-Fink derogatory mother fucker

Mr. Fink 

One of the greatest people of all time. He has a pencil-line beard and usually wears dress shirts and khakis everyday. His demeanor is demon like and he will strike down any rampant troublemaker with just his state alone.
Person 1: Mr. Fink gave me a detention because I was screaming in the halls.
Person 2: If he gave it to you, you definitely deserved it.
Mr. Fink by SootGremlin September 4, 2019

The Fink 

Putting peanut butter or any other kind of food that can stay on your dick and or balls and letting a animal lick it off, most likely a dog or cat.
Dude I was so horny last night I did The Fink.
The Fink by Finkelberg December 9, 2008
1. just another way to call someone an jerk
2. a song by an AMAZING band.. the misfits. ROCK ON
dude joe is being a rat fink

F!! I SAID F.I.!!! F.I.N.!! F.I.N.K.!!! F.I.N.K. FINK FINK FINK FINK!!
rat fink by misfitfan April 17, 2005
bj fink by TJ B February 22, 2008