roughie vs roughneck

roughie

noun
  • A film portraying rough sex. 

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 roughie and roughneck occurred in a corpus of books? (source: Google Ngram Viewer )