prawn vs yabby

prawn

noun
  • A crustacean, sometimes confused with shrimp. 

  • A crustacean of the suborder Dendrobranchiata. 

  • A fool, an idiot. 

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

verb
  • To fish for prawns. 

yabby

noun
  • A species of marine ghost shrimp, Trypaea australiensis, widely harvested by recreational anglers as bait. 

  • An Australian freshwater crayfish of the genus Cherax, especially Cherax destructor. 

verb
  • To show disrespect by denouncing or insulting; to diss. 

  • To search, forage, or fish for yabbies. 

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