Regional expressions you didn't always realize were not widespread

Up North and Duck Duck Grey Duck (a FAR superior game) have been mentioned as Minnesotaisms (we are also a pop not soda state, though I think that’s changing) but I didn’t see “hotdish” What the rest of the country calls a casserole, we call a hotdish, and its an art form. (The dish you bake it in is often called a casserole, but what you bake is a hotdish) Tater tot hotdish is the epitome of Minnesota food.