kook vs sicko

kook

noun
  • An eccentric, strange or crazy person. 

  • A boardsport participant who lacks style or skill; a newbie who acts as if they are better at the sport than they are. 

sicko

noun
  • A person with unpleasant tastes, views or habits. 

  • A physically ill person. 

  • A mentally ill person. 

adj
  • Characterized by depraved tastes or habits; deviant. 

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