ang moh vs pigskin

ang moh

noun

  • A white person, especially one perceived as a foreigner rather than a local inhabitant. 

pigskin

noun

  • Leather made from the skin of a pig. 

  • The skin of a pig. 

  • A football. 

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