Tradie's Keyboard
Australian slang for pokies (slot) machines. It refers to the tendency of Australian tradespeople to play pokies excessively and lose their life savings, sending them into a spiral of meth addiction and despondency.
'Damo been at the pub for 10 hours, tappin' away on the tradie's keyboard. Says today is the day he's gonna win it all back so he can see his kids again.'