For everyone who isn't a brit/irish chav a == "trailer trash".
Hehe no offense, but you choice of title is a tad misleading. For a minute there I thought this was going to be a complaint about us.
Anyways, different sites have different tolerance levels. I guess that's why it is usually best to check out things first before blindly going for the post button. As for us, well we do have race rules here too, but I'm not sure that could be classed as a race or not. But it is a derogatory term. If it had occured here I guess it would have depended on the context in which it was used.