What is Chav Scum!?
1.A general term of abuse aimed at Chavs.
Of course a Chav would not see Chav as an insult.
Whether or not 'Scum' is insulting is unlikely.
2. A website about Chavs.
Person1: "You're Chav Scum!"
Chav: "You startin'?!"
See chav., chav, chavish