First thought of this when I was with my friend and we saw a chav! with the full crappy citoren saxo and fake nike tracksuit, the works!.
The ultimate chav name / derogatory remark!, "Dazzar"
Alternatives include, Azzar, Bazzar and of course, Danny, Twat
"Look at that dazzar over their!"
"what a Dazzar!"
"Bristol is fucking Dazzarvile"
"Look at that piece of shit metro over there! "Dazzarmobil"
"look at that bus full of dazzars, it would be a shame if that fell off a cliff!"