doof vs mutt

doof

noun
  • A simpleton. 

  • A type of music with pronounced bass, typically associated with the modified car scene. 

  • An outdoor dance party, held in bushland in a remote area or on the outskirts of a city. 

mutt

noun
  • A person from the United States, in reference to sense 2. 

  • A person of mixed racial or ethnic ancestry. 

  • A mongrel dog (or sometimes cat); an animal of mixed breed or uncertain origin. 

  • An idiot, a stupid person. 

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