prawn vs toad

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. 

toad

noun
  • A contemptible or unpleasant person. 

  • An ugly person. 

  • An amphibian, a kind of frog (order Anura) with shorter hindlegs and a drier, wartier skin, many in family Bufonidae. 

verb
  • To expel (a user) permanently from a MUD or similar system, so that their account is deleted. 

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