Nice Tattoo...

What in Gods name is a bush oyster or a clacker for that matter .. yobbo .. ummm

Bush oyster : nasal mucus
Clacker : anus (from Latin cloaca = sewer). Also the single orifice of monotremes (platypus and echidna) used both for reproduction and for the elimination of body wastes.
Yobbo : an uncouth person
 
What youse think? Perhaps some misuse of a Strine word?
Like - BUSH OYSTER - CLACKER - YOBBO - ???
Bush oyster : nasal mucus
Clacker : anus (from Latin cloaca = sewer). Also the single orifice of monotremes (platypus and echidna) used both for reproduction and for the elimination of body wastes.
Yobbo : an uncouth person

Bush oysters can also be fried kangaroo or scrub bull (sorry1oBull) testicles ,a bit of a treat for the old swagies and a change from damper with cockies joy and tea
 
Bush oysters can also be fried kangaroo or scrub bull (sorry1oBull) testicles ,a bit of a treat for the old swagies and a change from damper with cockies joy and tea

WTF?
"swagies and a change from damper with cockies joy and tea" ???