So the recent threads on devon and jaffles reminded me of my BIL. My family is Victorian, and my sister married a NSW'er (well, Welshman, but you geddit) from pretty far up North- very close to the QLD border.
It always used to amuse me when he would go on and on at my sister about what we call things, because he had grown up calling it something else
Eg- what we call primas:
(And not just that brand, any type of juice in a box)
He would bang on and on about them NOT being called Prima's, because that was the brand- they were known to him as popper's. This is what I grew up calling a popper:
And of course, we would argue that we call things by brand names all the time- Thermos, Esky etc.
So tell me- what do you find hard to believe that other people think is a perfectly common word or noun?