I've heard people pronounce it as Massatusetts or Massatchuetts rather an Massachusetts.
When we camped at a particular state park in CT, one of the state employees who met you at the security gate would glance at your plates and pronounce what he thought of where ya came from:I've heard Massachuzetts, which annoys me, but never with a T sound in the middle (I'm from MA).
He declared Mass drivers from Taxachusetts and New Yorkers from the Vampire State. Used to crack us up.
One year we rented a car with CT plates and he looked at us confused (he knew us by sight then) but I was ready for him. Handed him a bulb of garlic and said we were refugees. For the rest of that stay he'd grab the garlic he left on a ledge and make the sign of the cross before waving us through. Nice man who helped to restore my faith in humankind.