rice pudding vs thickshake

rice pudding

noun
  • A milk pudding made from rice, milk, sugar and nutmeg. 

thickshake

noun
  • A beverage consisting of milk and ice cream mixed together, often with other flavorings as well. 

  • An imitation milkshake (in locales where "milkshake" refers to the drink specified above), often containing no milk. 

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