Australian for butt tattoo

Those wacky Australians. When they're not busy "taking the piss out of each other" or "having a go" at a game of cricket they are working to evolve the language of Chaucer and Milton. What to call a tattoo above the crack? Arse antlers. An overweight person? A salad dodger. Are you one of those hairy bastards who has to whittle away at you mane of flowing back hair? You are manscaping.