What's Australian for Graffiti?

I could not help laughing out loud when I read this article about some blokes in Alice Springs mistaking Stephen King for a vandal when he signed some of his own books in a book store.

Can't you just imagine some big fella named Bruce, with a slouch hat and his shirt unbuttoned halfway down, "Oi, you, don't you know dem books is by that King feller. Now scat before I sick the dingo on 'ya!"