Apart from the 'knives'bit, that could be a description of the posh idiots who go to York races, though.
(
monkeon schmonkeon,
Fri 1 Aug 2008, 11:15,
archived)
I'd throw them into the same category, personallybut perhaps 'cunt' is a better description than 'chav', I suppose.
(
Finite "Aardvark sorted out my shit!" on,
Fri 1 Aug 2008, 11:19,
archived)