A bastard modifier. A person exhibiting especially abhorrent levels of bastardry is known as a "ratfink bastard." Alternately, for a milder offense, the term "ratfink" can be used independently of bastard.
Do you know where Jared is? Next time you see him, tell that ratfink bastard I'm going to tear out his scrotum for knocking up my sister.

Timmy's the kind of lazy ratfink that leaves half a sheet of toilet paper on the roll just so he doesn't have to replace it with a new one.
by marahnna January 11, 2008
14 more definitions
Top Definition
Tattletale, stool pigeon, squealer, snitch, double-crosser, weasel.
That rat fink Lenny sold me out to Tommy G!
by Rodney Basil August 28, 2004
1. the combination of two terms used to describe the underhandedness of some one to stress what a low down sneak they are.
Matt is a rat fink, he told the teacher I snuck another cupcake.
by Bud E Love May 07, 2003
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.
by Cap'n Bullmoose May 06, 2005
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!!
by misfitfan April 17, 2005
lying twoheaded, manipulitive, hypochondriac with crazy tendancies.
"dude chris is such a rat fink"
by appidodo October 03, 2008
latin: Ratus Mcfinkle
a common insult used in the 80's
Marc M
Marc is a little ratus mcfinkle
by Anonymous May 23, 2003

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