Neither should I...
Jello salad ice cream? Only in Minnesota.
Story: My husband was friends with a girl from St. Cloud while at ISU. Of course, there's a different vocabulary up in Minnesota. He finds out from her that it isn't called a casserole in MN, but a hot dish. This leads my husband to ask "So what do you cook it in? A hot dish dish?" She actually didn't have an answer to that, but came back about a week later saying "My mom says it's a hot dish glass pan!"
Needless to say, we gifted them the casserole dishes she registered for when she got married a few years later.
When I found out my wife (then GF) spent several of her formative years in Minnesota, I made sure to verify that she didn't use "hotdish". Absolute deal breaker, so we're lucky that one hadn't stuck.
She does, however, use duck, duck, grey duck (instead of goose), but since I'm above 4th grade, I was able to overlook that one.