hot mess vs knacker's yard

hot mess

noun
  • A situation or object in a state of extreme disarray. 

  • A warm meal, usually cooked in a large pot, often similar to a stew or porridge; service of such a heated meal to soldiers. 

  • A disheveled or unbalanced person, particularly one who is nevertheless, or therefore, attractive. 

knacker's yard

noun
  • A (notional) place to send a person or object that is spent beyond all reasonable use. 

  • The area of a slaughterhouse where carcasses unfit for human consumption or other purposes are rendered down to produce useful materials such as glue. 

How often have the words hot mess and knacker's yard occurred in a corpus of books? (source: Google Ngram Viewer )