If you want to offend someone under 30, it is fairly simple: just refer to them by a common greeting that was once seen as inoffensive. The classic Aussie habit of calling someone “champ ...

but the word is "champ".' In Australian prisons the term is shorthand for a paedophile or a 'c***sucker' and saying it to the wrong person could land an inmate in hot water. In the Aussie TV ...