betty vs jello

betty

noun
  • A baked dessert made with alternating layers of sweetened fruit and buttered bread crumbs. 

  • An attractive woman; a babe. 

  • A short bar used by thieves to wrench doors open; a jimmy. 

jello

noun
  • A dessert made by boiling flavoured gelatin in water 

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