birthday cake vs cheesecake

birthday cake

noun
  • A cake, often iced and decorated, made to celebrate a person's birthday. 

cheesecake

noun
  • A pie made of sweetened and flavoured cottage cheese or cream cheese, eggs and milk on a crunchy base. 

  • Imagery of scantily clad, sexually attractive young women; pin-ups. 

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