dog food vs horseflesh

dog food

noun
  • Synonym of dog meat (“dead person”) 

  • Heroin, typically the non-black tar type. 

  • Beta software that is tested on the developer’s own computer. 

  • Food for domesticated dogs. 

  • Food eaten by or appropriate for dogs in general, whether wild or domesticated. 

horseflesh

noun
  • The flesh of a horse; horsemeat. 

  • Horses collectively, with reference to driving, riding, or racing. 

  • A species of Bahama mahogany, Lysiloma sabicu and Lysiloma latisiliquum. 

adj
  • Of the colour of horseflesh; of a peculiar reddish-brown hue. 

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