Guinea vs greaseball

Guinea

name
  • A country in West Africa. Official name: Republic of Guinea. 

  • Someone of Italian descent in the United States. 

  • The coast of West Africa between Morocco and the Congo, particularly the north shore of the Gulf of Guinea. 

greaseball

noun
  • A person of Italian, Spanish, Portuguese, Greek, other Mediterranean, or Latin American descent. 

  • A biker, a tough. 

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

  • A mechanic. 

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