chatterbox vs interlocutor

chatterbox

noun
  • One who chats or talks to excess. 

  • A cootie catcher (children's fortune-telling device). 

  • Synonym of chatterbot 

interlocutor

noun
  • A person who takes part in dialogue or conversation. 

  • A man in the middle of the line in a minstrel show who questions the end men and acts as leader. 

  • A decree of a court. 

  • An interlocutory judgement or sentence. 

How often have the words chatterbox and interlocutor occurred in a corpus of books? (source: Google Ngram Viewer )