Everyone in this country can get behind a good "U-S-A! U-S-A!" chant. For everything else, we've got our own regional dialects.
As a linguistic person myself I find this both infuriating and very intriguing!
A statistician at North Carolina State University analyzed survey data on the different words and pronunciations different parts of this country use to describe the same exact thing. Here are the three biggest ones that we Americans disagree on . . .
Caramel. The East and the South usually go with "car-a-mel" . . . the Midwest and West go with "car-mil."
You Guys vs. Ya'll. The South uses "ya'll" . . . except for south Florida, which goes with "you guys." Pretty much the rest of the country goes with "you guys" . . . except central Kentucky, where the most popular version is "you all."
Pecan. This might be the biggest divide of all. The Northeast pronounces it "PEE-can" . . . Louisiana and its surrounding areas go with "pick-AHN" . . . northern Wisconsin and Michigan say "PEE-kahn" . . . and the rest say "pee-KAHN."
What word (or phrase) can make your skin crawl when it's said unusually?
BTW: Here is an interesting article on how Americans speak differently depending on where they live: