0 a person, especially a child, who talks a lot:
1 someone who talks continuously:
Our three-year-old is a real chatterbox.
She was a bossy chatterbox who liked to kibbitz, much to her classmates' dismay.
They were represented as mere spouters and chatterboxes, the putters of awkward questions and the raisers of small points of procedure.
If that happens, how can we remove the ill that has been done and where is the sanction against a chatterbox on the committee?
It is a sign if a child who formerly was a chatterbox is sullen and withdrawn at school.
Yet a chatterbox, had no other use of speech than she has now, that she could repeat only the last words out of many.
She is a chatterbox and her style is electrifying, shiny and metallic.
It takes its inspiration from different qualities of the human voice, including stutters and chatterboxes.
Landrith was once described as a legendary chatterbox.