Dagwood sandwiches are comically large sandwiches loaded with multiple ingredients. Their name is derived from a comic strip, "Blondie," in which a main character named Dagwood would often make himself such cartoonishly huge sandwiches. However, the mechanics of making and consuming such a large sandwich is easier in the fictional comic strip world than it is in real life.
As a result, real-life Dagwood sandwiches may not be quite as dramatic as those depicted in the comic. There are no specific ingredients in a Dagwood sandwich, but typically, these sandwiches are very large and will include a variety of different sliced meats and other toppings.