mzungu vs white bread

mzungu

noun

  • A white person. 

white bread

noun

  • A white person, a person of European descent, a person who 'acts white'. 

  • Bread made from white flour. 

adj

  • Bland, boring; flavorless. 

  • Of or relating to white people. 

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