The hot dog emoji is most often used to accompany messages about food, baseball, small dogs—and penises.

If someone calls you a hotdog, they mean you're a daredevil or a risk-taker. Also, you can say “hotdog!” to express delight, kind of like “woohoo!” Hotdog! Definitions of hotdog. noun. a frankfurter served hot on a bun.

As the legend goes, Dorgan observed vendor Harry Stevens selling the "hot dachshund sausages" during a game at the New York Polo Grounds and shouting "Get your red-hot dachshund sausages!" Dorgan illustrated this scene with a dachshund dog nestled in a bun with the caption "get your hot dogs."