snitches
snitch-es
noun
Individuals who secretly report others' wrongdoings to authority figures.
"The teacher warned the snitches."
verb
To secretly inform on someone, often to an authority, about their wrongdoing.
"He snitches on his brother."
Thesaurus
Synonyms: fink, sneaker, canary, stoolie, stoolpigeon, stool pigeon, sneak, snitcher, knock off, thieve, glom, cop