'snitcher' definitions:

Definition of 'snitcher'

From: WordNet
noun
A thief who steals without using violence [syn: sneak thief, pilferer, snitcher]
noun
Someone acting as an informer or decoy for the police [syn: fink, snitch, snitcher, stoolpigeon, stool pigeon, stoolie, sneak, sneaker, canary]