at present there are many interesting names for simple things but people don't think about them,such as "hot dog."
In the past there was a food seller named Antonoine who sold sausages in the street but they were very hot, so he gave his gloves to the customers. As a result his gloves and profits were lost. So he brought a bun and put a sausage in it and named his creation, "hot dog." There are many interesting names in the world and a lot of them have a history like hot dogs.