What's minnesota slang like?

I'm a scandinavian who's interested in minnesota due to the history of immigrants from sweden norway finland etc. I'm surprised that y'all pretty much only speak english but there's so many words like uff da, fi da, ish da, fi fon that are pretty transparently nordic to a native speaker (uff då, fy då, usch då, fy fan). Are there any more words or slangs? I'd love to hear about it.