Fink/fɪŋk/ Definition 1 of 3Pro Tip 1/3Negative Connotation The term 'fink' carries a strong negative judgment and suggests betrayal. He was labeled a fink after the team project incident. Pro Tip 2/3Colloquial Use 'Fink' is informal and more common in spoken language rather than formal writing. In casual conversation, you might say 'Don't be a fink' to a friend. Pro Tip 3/3Cultural Context Some people may not be familiar with 'fink', so be mindful of your audience. My international friends didn't understand when I called him a fink.