Oh it's been known for years, it began with the bish bosh 'Essex man' and snowballed from there.
'The Oxford English Dictionary (OED) lists the earliest reference to the Essex man as one from 7 October 1990 in The Sunday Telegraph, although a reference to 26 January 1990 issue of Campaign: "Representative [David Amess] of new
Essex man, working-class, father electrician, right-wing, keen hanger, noisily rambunctious, no subtlety".'
neo liberal 'chav'
https://en.wikipedia.org/wiki/Essex_man