foul-mouthed vs scatological

foul-mouthed

adj
  • Tending to use obscene or offensive language. 

scatological

adj
  • Relating to scatology, the use of obscenities. 

  • Relating to the research area of scatology, the particulate study of biological excrement, feces or dung. 

How often have the words foul-mouthed and scatological occurred in a corpus of books? (source: Google Ngram Viewer )