A person who informs on others to authorities; an informant or tattletale. Also used as a verb meaning to inform or betray someone's secrets.
American slang of uncertain origin, first appearing in early 20th century. Possibly from German 'Fink' (finch), used as rhyming slang, or from Yiddish. Gained prominence during labor disputes when describing strikebreakers and informants.
The word 'fink' captures the social disgust for betrayal in just four letters—it sounds as sharp and unpleasant as the act itself! Interestingly, it's one of the few words that can serve as both accusation and confession: 'He's a fink' versus 'I'm going to fink on you.'
Complete word intelligence in one call. Free tier — 50 lookups/day.