Highfalutin is one of those words you’ve heard, but not sure of the meaning.
I looked it up, and have the perfect example.
We took the inlaws out for lunch, knowing a lovely little cafe where they served the best breakfast ever for a fiver.
MIL refused to cross the threshold wanting a restaurant with fancy china and silverware.
We ended up on the quay in a fish and chip shop restaurant, with split plastic tablecloths, chipped mugs, unmatched cutlery, no napkins and hot food cooked to order.
Three of us enjoyed our meal, the fourth did nothing but moan.
You can read about the rest of that day here
The definition of highfalutin is arrogant or pompous.
Source: Cambridge dictionary:
trying to seem very important or serious without having a good reason for doing so; pretentious.