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Following on from the naming of chavistan, in the vein of referring to unpleasant places by echoing the names of middle-eastern nations or cities, a place with a heavy chav population can be described as chavdad.
Chavdad is more than a place where chavs gather, it is akint o a capital city for chavs.

"McDonalds in the high street is like Chavdad"
by Jigs got a passport November 10, 2004
An elderly gentleman who dresses in "chav" style clothing.
Look at that chavdad buying a dominoes
by crufts February 15, 2009