The Hamburger is named after Hamburg, Germany
The term hamburger originally derives from Hamburg, Germany's second largest city, from which many people emigrated to the United States. In High German, Burg means fortified settlement or fortified refuge; and is a widespread component of place names. Hamburger can be a descriptive noun in German, referring to someone from Hamburg (compare London → Londoner) or an adjective describing something from Hamburg. Similarly, frankfurter and wiener, names for other meat-based foods, are also used in Germany and Austria as descriptive nouns for people and as adjectives for things from the cities of Frankfurt and Wien (Vienna), respectively. The term "burger" is associated with many different types of sandwiches similar to a (ground beef) hamburger, using different meats, such as a buffalo burger, venison, kangaroo, turkey, elk, lamb, salmon burger or veggie burger.
... sorry, Pedant mode is now off.
So now we know which people Soylent Green is!