verb
(intransitive) To chatter; to gossip.
(intransitive, Canada, US, derogatory) Often said of children: to report incriminating information about another person, or a person's wrongdoing in an annoying fashion, usually to a person in a position of authority over the accused person; to tell on somebody.
(intransitive, obsolete) To speak like a baby or young child; to babble, to prattle; to speak haltingly; to stutter.
noun
(countable) A tattletale.
(countable, Canada, US, derogatory) Often said of children: a piece of incriminating information or an account of wrongdoing that is said about another person.
(uncountable) Idle talk; gossip; (countable) an instance of such talk or gossip.