liquidizer vs milker

liquidizer

noun
  • A machine to chop or puree food; a blender. 

milker

noun
  • A milking machine. 

  • A woman’s breast. 

  • A person who milks. 

  • An animal, such as a dairy cow, kept for the milk it produces. 

  • A conservative poker player who only raises the stakes on a good hand. 

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