someone acting as an informer or decoy for the police
同义词：fink??/??snitch??/??snitcher??/??stoolpigeon??/??stoolie??/??sneak??/??sneaker??/??canary
a dummy pigeon used to decoy others
Sitting on her stool, she was devouring my pigeons, with both hands, like this.
NEWYORKER: The Stolen Pigeons
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