I have to say I’d never heard that expression Y ‘all before I joined this forum way back in 2015 However I’ve spent a bit of time trying to teach some of the games playing members how to speak Aussie …. and most of all how to correctly spell TYRES and a few other words
A bit off subject, there was a former Mayor of Detroit, a rather flamboyant and controversial person who had some paternity suits against him that he vigorously fought. It was jokingly said that when he finally left office, he was going to open a chain of taco restaurants, called "Nacho Daddy". Badda boom.