Frankfurter/ˈfræŋkfɜːrtər/ Definition 1 of 2Pro Tip 1/3Casual Eats The term 'frankfurter' is often associated with casual and fast food settings. Let's grab a frankfurter at the food stand. Pro Tip 2/3Variety Frankfurters can vary in flavor and toppings, reflecting local tastes. In Chicago, they love their frankfurters with pickles and tomatoes. Pro Tip 3/3Sporting Events Frankfurters are commonly eaten at sports events in the U.S. He ordered a frankfurter during the baseball game's seventh-inning stretch.