Benny vs mumchance

Benny

noun
  • A stupid or dull-witted person. 

  • Synonym of eggs Benedict 

  • A native of the Falkland Islands. 

  • A temper tantrum. 

  • A one-hundred-dollar bill. 

name
  • A nickname for a man named Benjamin. 

  • A nickname for a woman named Bernice or Bernadette. 

  • A surname. 

mumchance

noun
  • A silent, stupid person. 

  • An old game of chance played with cards in silence. 

adj
  • Mute, or not speaking; silent. 

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