a Chav is actually more like a well dressed bogan who tries to project view that they are better off than they actually are.
the term is believed to have come from the acronym of "CHeltenham AVerage" which is what the priate school girls called the 'lads' of cheltenham.
and just youtube pedalkick and you'll get all the help you need
oh and watch the swearing, we're normally pretty loose on it here but that was excessive.