layer cake vs tart

layer cake

noun
  • A cake consisting of multiple stacked sheets of cake, held together by frosting or jam, etc. 

  • A type of layering of materials, used in some nuclear bombs. 

tart

noun
  • A type of small open pie, or piece of pastry, containing jelly or conserve; a sort of fruit pie. 

  • Any woman with loose sexual morals. 

  • A prostitute. 

  • A melt (block of wax for use in a tart burner). 

adj
  • Sharp to the taste; acid; sour. 

  • high or too high in acidity. 

  • Sharp; keen; severe. 

verb
  • To practice prostitution. 

  • To practice promiscuous sex. 

  • To dress garishly, ostentatiously, whorishly, or sluttily. 

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