Abo jokes-Where's your bin?

A garbage truck stops outside a ramshackle old house in Redfern.
The garbo yells out to the old Abo sitting on the front step: "Hey, where's your bin?"
Abo answers "I've bin in Queensland".
Garbo: "No, where's your wheelie bin".
Abo: "Well, I've weally bin in jail for the last two weeks, but don't tell anyone".