Mightymitre - you have made me feel a little homesick. Two of my best friends back in Aust are Poms (they married Aussie boys and made Australia home). They use the term Naff and just hearing it again reminds me of them.

Also Aussies use rhyming slang septic tank for yanks as well although its an older term and I dont think young Aussies use it very much.