Newfy “English” is the Quebecois of English dialects. It’s barely understandable by the rest of the country. An Englishman and an american/Canadian will be able to understand one another mostly with no problem. There will be the odd slang word that trips 'em up but, overall, the message comes across. Newfy is hard to understand what most words are, the accent is thick.

Similar to a Scottish or Welsh accent, I should think, to north Americans.

Lol yep, newfies are borderline unparseable sometimes. The character Hitch from Shoresy will give you a relatively mild taste of the accent, and sometimes it sounds like he’s speaking gibberish.

This scene is similarly hilarious, but for a different accent.