What is to utter jargon; to emit confused or unintelligible sounds; to talk unintelligibly, or in a harsh and noisy manner. The noisy jay, Jargoning like a foreigner at his food. Longfellow called?

jargon — To utter jargon; to emit confused or unintelligible sounds; to talk unintelligibly, or in a harsh and noisy manner. The noisy jay, Jargoning like a foreigner at his food. Longfellow. (Webster's 1913.)