greasehead vs greaser

greasehead

noun
  • One of Italian or Hispanic descent. 

greaser

noun
  • An Italian. 

  • A mechanic. 

  • Someone or something that greases (applies grease). 

  • A biker, a tough. 

  • A rocker or metalhead, especially one who listens to 1950s rock and roll or 1980s thrash metal. 

  • A Latin American, especially a Mexican. 

  • A Greek. 

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