cool cat vs nonpartisan

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. 

nonpartisan

noun
  • A person who has not selected or declared a side or party. 

  • One who is not a partisan. 

adj
  • Not partisan; impartial and unbiased 

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