The example you have given is only relatively to chav speak, I can assure you, not many of us are chavs. Haha. To be fair discounting all British accents is a bit harsh. Considering it consists of-
Cockney, "Regular" Londoner, Brummy, Yorkshire, Mancunian, Geordie, Scouse, Glaswegian, Edinburgh, West Country, Belfast, Welsh.
And no doubt many more. I could very easily find similar examples to your own in the American language sphere, or anywhere else, frankly.
PS. the article highlighted is incorrect in many of the modern examples given.