kook vs screwball

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. 

screwball

noun
  • One who behaves in a crazy manner. 

  • A pitch thrown with added pressure by the index finger and a twisting wrist motion resulting in a motion to the right when thrown by a right-handed pitcher. 

adj
  • Crazy, offbeat, bizarre, zany, or weird. 

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