Where I used to work as a Manager of a youth training centre we had access daily to hundreds of Ballarats youth. One of the youthworkers working for me tried the same thing as you Trevor. To invent a new cool word and see if it would catch on.
He replaced the words Dork, idiot, spaz, dropkick, d--- head etc with 'spoon'.
whenever one of the kids would say something stupid, he would call them a 'Spoon'.
Every time he said it to them they said things like 'Geez your an idiot' and 'shut up ya old fart'
Needless to say, after about 6 months of trying, it didn't catch on
