prawn vs spiny lobster

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. 

spiny lobster

noun
  • a crustacean superficially resembling a true lobster, belonging to the family Palinuridae. 

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