گزارش خطا در معنی کلمه 'drop a dime'

1 general:: Inform on or betray someone, as in No one can cheat in this class? someone's bound to drop a dime and tell the teacher. This expression, alluding to the ten-cent coin long used for making a telephone call, originated as underworld slang for phoning the police to inform on a criminal and occasionally is extended to any kind of betrayal. [1960s]