Green’s Dictionary of Slang

(Anglo-Chinese) a European.

1851		Newcastle Jrnl 4 Jan. 3/1: the term ‘fan qui’ which means literally ‘foreign devil’ [...] is not always applied to Europeans with a bad intention, [...] signifying stranger or foreigner also.
1876		Brisbane Courier 30 Aug. 6/2: John Chinaman has once more outwitted the Fanqui in the matter of petty gambling. In spite of special Acts and adverse decisions [...] John perseveres in indulging in the delights of fan-tan and pak-a-pu.
1864, 1867, 1870		Hotten Sl. Dict.
1873		Sl. Dict.