nuffy vs shit-for-brains

nuffy

noun
  • A person who is stupid. 

  • Someone who an obsessive fan of a sport, particularly of cricket. 

  • A person with a disability, particularly intellectual. 

shit-for-brains

noun
  • An extremely stupid person. 

adj
  • Extremely stupid. 

How often have the words nuffy and shit-for-brains occurred in a corpus of books? (source: Google Ngram Viewer )