to talk persistently and loudly, often in a complaining manner.

to make a loud or excited noise, especially when arguing or discussing.

चिल्लाकर चर्चा करना

English Usage: The children yammered about their favorite cartoons.

Hindi Usage: बच्चे अपने पसंदीदा कार्टून के बारे में चिल्लाकर चर्चा कर रहे थे।

a loud, repetitive noise, often from people talking excitedly.

शोर

English Usage: The yammer from the crowd made it hard to hear the speaker.

Hindi Usage: भीड़ का शोर सुनने के लिए वक्ता को सुनना मुश्किल हो गया।