Green’s Dictionary of Slang

Cross, the n.

1. (Aus.) King’s Cross, Sydney, the ‘bohemian’ area of the town; thus crossite, one who lives there.

[Aus]D. Stivens Courtship of Uncle Henry 72: She breaks out once a fortnight. Goes round the wine bars at the Cross.
[Aus]K. Tennant Joyful Condemned 90: She lived in a filthy cellar up at the Cross.
[Aus](con. 1944) L. Glassop Rats in New Guinea 21: Perce the Pansy, the darling of the pooftas’ parade at the Cross.
[Aus]D. Ireland Glass Canoe (1982) 15: It was better up the Cross. King’s, not Southern.
[NZ]H. Beaton Outside In Act II: That was before I went to Sydney, to the Cross.
[Aus]R.G. Barrett Real Thing 79: ‘big Barry’ [...] was involved with some other gentlemen in massage parlours around the Cross.
[Aus]L. Davies Candy 34: We could go up to the Cross and check out the nightlife.
[Aus]D. McDonald Luck in the Greater West (2008) 128: The Cross was alive with this sort of energy on any Friday night.

2. King’s Cross, London, the area around the mainline railway station.

[UK]J.J. Connolly Layer Cake 104: I jump on a train and it takes me about ten minutes into the Cross.

In derivatives

Crossite (n.)

(Aus.) an established inhabitant of the Kings Cross area of Sydney.

[Aus]‘Charles Barrett’ Address: Kings Cross 68: By this time I felt like an old Crossite.