flurry vs have bats in one's belfry

flurry

verb
  • To agitate, bewilder, fluster. 

  • To move or fall in a flurry. 

noun
  • An occurrence of something (countable instances) in large numbers, happening suddenly or in a short period of time. 

  • A light, brief snowfall. 

  • A sudden and brief blast or gust; a light, temporary breeze. 

  • A shower of dust, leaves etc. brought on by a sudden gust of wind. 

  • The violent spasms of a dying whale. 

  • Any sudden activity; a stir. 

  • A snack consisting of soft ice cream mixed with small pieces of fruit, cookie crumbs, etc. 

have bats in one's belfry

verb
  • To be crazy or eccentric. 

How often have the words flurry and have bats in one's belfry occurred in a corpus of books? (source: Google Ngram Viewer )