Green’s Dictionary of Slang

(Aus.) generic for any Chinese person.

1910

Bulletin (Sydney) 15 Dec. 39/1: [T]he plain-clothes min was kep’ busy escortin’ par-rties av curiosity-hunters av bot’ sexs t’rough th’ tents av Kwang. [...] [T]he Kwangs’ shmoke become ‘a prohibited import, to wit, opium,’ and there was sorry an’ wailin’ in the land of Kwang.