cool cat vs deadpan

cool cat

noun
  • An individual who is at ease and self-assured; one who is calm and composed in interactions with others. 

  • A person who performs or appreciates jazz, especially one whose style of speech and movement is relaxed and rhythmic. 

deadpan

noun
  • A style of comedic delivery in which something humorous is said or done while not exhibiting a change in emotion or facial expression. 

verb
  • To express (oneself) in an impassive or expressionless manner. 

adv
  • In a deadpan manner. 

adj
  • Impassive. 

  • Deliberately impassive or expressionless. 

  • Having such a face or look. 

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