a rat fink

(American informal)

an extremely unpleasant person, or someone who has given secret information about you to the police If I find the rat fink who informed on me, he won't live long enough to do it again.

Common Names:

Name	Pronounced	Usage
Mien	MEEN	Dutch, Limburgish
Ciannait	-	Irish
Szilveszter	SEEL-ves-ter	Hungarian
Gratia	-	German
Bernetta	-	English
Eleonora	e-le-o-NO-rah (German), E-le-o-no-rah (Finnish), e-le-aw-NAW-rah (Polish)	Italian, German, Dutch, Swedish, Norwegian, Danish, Finnish, Polish, Bulgarian