cup of joe vs mocha

cup of joe

noun
  • A cup of coffee. 

  • One’s personal preference. 

mocha

noun
  • A coffee and chocolate mixed flavour. 

  • An Abyssinian weight, equivalent to a Troy grain. 

  • Any of a number of species of moths in the geometrid subfamily Sterrhinae, many European species having dark brown coloration. 

  • A strong Arabian coffee. 

  • A coffee drink with chocolate syrup added, or a serving thereof. 

  • A dark brown colour, like that of mocha coffee. 

adj
  • Of a dark brown colour, like that of mocha coffee. 

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