fink on

fink on (someone)

To report someone's misdeeds to an authority figure. The gang was determined to find the traitor who finked on them to the police. How could you fink on me to my parents? Now I'm grounded for a whole month!
See also: fink, on
Farlex Dictionary of Idioms.

fink on someone

Sl. to inform parents, the authorities, etc. on someone. You're not going to fink on me, are you? Chuck finked on all of us.
See also: fink, on
McGraw-Hill Dictionary of American Idioms and Phrasal Verbs.
See also:
  • fink
  • fink on (someone)
  • fink on someone
  • rat fink
  • fink out on (someone or something)
  • fink out on someone/something
  • fink out
  • cheese-eater
  • cover
  • get someone's dander up, to
References in periodicals archive
Fink on June 16 at the College of Physicians of Philadelphia.