prawn vs shore crab

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. 

shore crab

noun
  • A type of crab (Carcinus maenas) native to the coasts of Europe and North Africa. 

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