grotbag vs roughneck

grotbag

noun
  • A dirty or unhygienic person. 

roughneck

noun
  • Someone with rough manners; a rowdy or uncouth person. 

  • An ironworker; a dirty or low-paid worker, a labourer. 

  • A labourer on an oil rig. 

verb
  • To work as a laborer on an oil rig. 

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