big talk vs provocation

big talk

noun
  • Statements which are boastful or exaggerated. 

  • Major topic of conversation; current gossip. 

provocation

noun
  • Something that provokes; a provocative act 

  • The second step in OPQRST regarding the investigation of what makes the symptoms MOI or NOI improve or deteriorate. 

  • The act of provoking, inciting or annoying someone into doing something 

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