quicko: an un-PC post

Reading Looking for Alibrandi I was reminded of a slur I've heard discussed slightly, but don't actually know much more than wikipedia does about:  wog.  The term in the book referred to Australians of an Italian background, though I think it can be used a bit more broadly.  It's derogatory when used by an outsider, though acceptable, as are other such names, when used by a member of the group it describes.