I grew up in Michigan, lived in New England for about 10 or 11 years, then we moved back to Michigan.
MI = Pop
NE = Soda
MI = Water Fountain
NE = Bubbler
MI = Turn Signal (on your car)
NE = Directional
MI = rubber band
NE = elastic
There is a tendency around here to mash words together - "supposed to" becomes "sposta" and "Did you eat yet?" becomes "Didjya eat yet?"
In Massachusetts, they say "bang a yooey" to mean make a u-turn, and "wicked" to emphasize almost anything - as in, "wicked cool", "wicked fun", etc. Alcohol is purchased at a package store, or "packy."
How things are pronounced is different too. I was in Massachusetts, and often heard the classic "Boston Accent", with people dropping the R sound from words, but then sticking it where it didn't belong - as in, "Going to Florider for the winta." My MIL had that, plus isn't always good about enunciating properly, so when she was telling me about this bird by her bird feeder that she had never seen before, and then looked it up in her bird book and saw that it was a "wob-la", it took me a minute to realize she was saying "warbler."
AND I was told that "Mary", "Merry" and "Marry" are all pronounced slightly different - what???