tattle
verbUK /ˈtæt.əl/
US /ˈtæt̬.əl/
To tell on someone to get them in trouble.
Please don't tattle on your brother for eating the last cookie.
OTHER MEANINGS
2. To reveal secrets or private information by talking carelessly.
She tattled about the surprise party to everyone at school.
3. Idle or trivial talk; gossip.
The neighbors' tattle about the new family spread quickly.
4. To chatter or babble in a childish way.
The toddler tattled happily to herself while playing.