Fink noun – A person who provides information about another's wrongdoing. Judas and fink are semantically related. In some cases you can use "Judas" instead a noun "Fink". Nearby Word: finking
When Moralton does a play about Jesus in Moral Orel, Orel gets cast as Judas and does a whole song-and-dance number that opens with the line "I hate you Jesus, you rotten little fink." It became the only part of the play anyone remembered.