Why is a hotdog called the hotdog?
Based on Wikipedia, the hot part of hot dog was because a sausage vendor decided to put the sausage on a roll to keep people from burning their hands. Dog is in the name because sausage makers used dog meat.
The term was current at Yale in the fall of 1894, when "dog wagons" sold hot dogs at the dorms. The name most likely began as a joke about the Germans' small, long, thin dogs. In fact, even Germans called the frankfurter a "little-dog" thus linking the word "dog" to their popular concoction.
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