I still struggle with Australians calling a grill “Barbie”.
And Bob’s NOT my uncle...
Que dropped from the Bar and B.
How so?
Bar-B-Q.
Barbeque.
Aussies like to shorten all kinds of words:
Arvo = Afternoon; Footy = Australian Rules Football; Maccas = McDonalds; Service station = Servo; Tinny = Tin can = beer...
And these are just a few.
Barby for Barbecue makes perfect sense in Straya.