Rabelaisian vs foul-mouthed

Rabelaisian

adj
  • Possessing a style of satirical humour characterized by exaggerated or grotesque characters and coarse jokes. 

  • Pertaining to the works or period of Rabelais. 

foul-mouthed

adj
  • Tending to use obscene or offensive language. 

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