blancmange vs spare tyre

blancmange

noun
  • A simple dessert made by cooking sweetened milk with cornstarch and vanilla. 

  • A dish, eaten in the Middle Ages, generally consisting of chicken (or sometimes capon or fish), milk or almond milk, rice, and sugar. 

spare tyre

noun
  • A large paunch and rolls of fat around the waist. 

  • An extra tyre carried in case one of the vehicle's tyres is damaged or deflated. 

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