barnyard vs filthy

barnyard

adj
  • Vulgar, scatological. 

  • Of food or drink: having an earthy flavor. 

noun
  • The yard associated with or surrounding a barn. 

filthy

adj
  • Very unpleasant or disagreeable. 

  • Covered with filth; very dirty. 

  • Obscene or offensive. 

verb
  • To make very dirty; to saturate something with dirt. 

  • To cover in filth. 

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