Dagwood sandwich vs dagwood

Dagwood sandwich

noun
  • An exceptionally thick sandwich made with numerous layers of various meats, cheeses, vegetables, and condiments. 

  • A thick stack of flat objects or a complicated melange of diverse components or ingredients. 

dagwood

noun
  • A multi-layered sandwich containing cold cuts, cheese, lettuce and any of several other fillings 

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