Green’s Dictionary of Slang

(Aus.) Melbourne; thus Stinkopolian, an inhabitant of Melbourne.

1889		N. Melbourne Advertiser 22 Nov. 2/5: Our champion name slinger [...] has given to the town of Footscray [i.e. a suburb of Melbourne] the not inappropriate name of ‘Stinkopolis’.
1890		Dead Bird (Sydney) 1 Mar. 2/1: The Chinese in warfare rely principally on their stink-pots for victory. If they ever invade Smelbourne they will find that this [...] will quite fail them, for the Stinkopolians wilt be able to beat them with their own weapons.
1890		letter in N. MIner (Charters Towers, Qld) 16 Apr. 2/7: Next, you say ‘British gold flows into these colonies,’ that is Stinkopolis and its suburbs.
1898		Kalgoorlie Miner (WA) 1 June 2/5: Again, there were the good, kind supporters around ‘Stinkopolis’ and its port to be considered.
1908		Sydney Sportsman (Surry Hills, NSW) 23 Sept. 3/5: A paper in Stinkopolis says of Titheradge, junior, that he has a facile pen in verse and prose.