prevaricate vs shit talk

prevaricate

verb
  • To shift or turn from direct speech or behaviour; to deviate from the truth; to evade the truth; to waffle or be (intentionally) ambiguous. 

  • To undertake something falsely and deceitfully, with the purpose of defeating or destroying it. 

  • To collude, as where an informer colludes with the defendant, and makes a sham prosecution. 

shit talk

verb
  • Synonym of talk shit 

noun
  • Derogatory speech regarding someone or something. 

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