fleabrain vs tomfool

fleabrain

noun
  • A stupid or foolish person 

tomfool

noun
  • a silly or stupid person, especially a boy or man. 

  • Any of various tyrant flycatchers viewed as foolishly confiding. 

verb
  • To act foolishly. 

adj
  • silly or stupid. 

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