Firstly, The PM.... you kill me!Very funny dude.
I have no tatts adorning my body but I know several good mates that have and work for QF, JQ & CX etc.
All airlines will issue long sleeve shirts if requested which would cover any tatts you might have(provided they're not on your neck or face).
Turning up to the medical fit, trim and heathy is the only concern that the DAME's will have.
As for being bogan Flyitboy, some are yes, but they're not on you dude so why get so worked up about it all.
Cheers
Bill.