Meanings
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1
noun
an informer who secretly reports another person's wrongdoing to the police or another authority
The gang threatened anyone they suspected of being a snitcher for the police.
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2
noun
a thief who steals furtively without using violence; a sneak thief
The detective recognized the suspect as a practiced snitcher who targeted crowded stations.
Thesaurus
Etymology
Formed from snitch + the agent suffix -er. Snitch has been used in criminal slang for both stealing and informing since at least the eighteenth and nineteenth centuries, though its deeper origin is uncertain.