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v. tat·tled, tat·tling, tat·tles
1. To reveal the plans or activities of another, especially ones that are secret or improper: tattled on his sister when she snuck out; tattled to his parents about what his sister did.
2. To chatter; prate.
To reveal (something about someone) to another, as through gossiping.
1. Idle talk; chatter; prattle.
2. A tattletale.
[Middle English tatelen, to stammer, probably from Middle Dutch, of imitative origin.]
in a tattling manner