naughty vs vulgar

naughty

adj
  • Sexually provocative; now in weakened sense, risqué, cheeky. 

  • Mischievous; tending to misbehave or act badly (especially of a child). 

verb
  • To perform sexual acts upon. 

vulgar

adj
  • Debased, uncouth, distasteful, obscene. 

  • Being a vulgar fraction. 

  • Common, usual; of the typical kind. 

  • Having to do with ordinary, common people. 

noun
  • The common people. 

  • The vernacular tongue or common language of a country. 

  • A common, ordinary person. 

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