bollix vs prawn

bollix

noun
  • A fool; a jerk. 

  • Confusion. 

  • Mess. 

verb
  • To confuse. 

  • To botch or bungle. 

prawn

noun
  • A fool, an idiot. 

  • A crustacean of the suborder Dendrobranchiata. 

  • Synonym of butterface: A woman with an attractive body but an unattractive face. 

  • A crustacean, sometimes confused with shrimp. 

verb
  • To fish for prawns. 

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