slang to tell someone in authority about someone who has done something wrong
Someone must have squealed on McGraw because the police arrested him that morning.
phrasesqueal on squeal on sbinformal to tell someone in authority about something wrong or illegal that another person has done: "The cops found out about the robbery." "Someone must have squealed on us."Would you squeal on a friend for smoking marijuana?■ SIMILAR TO: inform on, grass on BrE informal
squeal on (one)
To inform a figure of authority about someone else's crime, wrongdoing, or transgression. I'm afraid the mafia will make a hit on me since I squealed on them to the police about their money-laundering operation.Why would you squeal on me to the teacher like that?Don't tell your sister anything, she'll squeal on us the first chance she gets.
squeal on
v.
To disclose incriminating information about someone: The accountant squealed on her corrupt managers. He squealed on his brother for jumping on the bed.