chit-chat vs shit talk

chit-chat

verb
  • To engage in small talk, to discuss unimportant matters. 

noun
  • Gossip. 

  • Light conversation; casual talk, usually about trivial matters. 

shit talk

verb
  • Synonym of talk shit 

noun
  • Derogatory speech regarding someone or something. 

How often have the words chit-chat and shit talk occurred in a corpus of books? (source: Google Ngram Viewer )