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rat fink

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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.

See also: rat

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rap
rap across/on/over the knuckles
rap knuckles
rap sheet
raring
raring to go
rat

rat fink
rat race
rat-arsed
rate
rattle
rattle cage
rattle off
raw

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