babbles

verb

• To utter words indistinctly or unintelligibly; to utter inarticulate sounds

  "The men were babbling, so we couldn't make sense of anything."

• To talk incoherently; to utter meaningless words.
• To talk too much; to chatter; to prattle.
• To make a continuous murmuring noise, like shallow water running over stones.

  "Hounds are said to babble, or to be babbling, when they are too noisy after having found a good scent."

• To utter in an indistinct or incoherent way; to repeat words or sounds in a childish way without understanding.
• To reveal; to give away (a secret).