In Australian English, a fair woman (usually Anglo or East Asiatic) who only has sex with Australoid Blacks, due to their penis size.
Given the free mingling of naked Aboriginal males in British settler towns ('Fashioned from penury: dress as cultural practice in colonial Australia'. Margaret Maynard. Cambridge: Cambridge Univ. Press, 1994, p.64), Anglo-Australian men & women have historically been well-educated about the dimensional superiority of the Australoid Penis or Dravidian Penis (averaging 9 inches as per works on the Penis Caste System) over the much smaller Anglo Penis (averaging 5-5.5 in). Of course, this is most marked in case of the tall Carpentarian or Dravidian-Australoids.
Adding to this the customs of Dravidian Penis Implants & subincision, one night with a "Blackfellow" results in permanent "Dravidianization". Hence, like the Nigrified Dixie lady & the Dravidianized Indo-Aryan Begum, the Australian moll who has once tasted a Pacific Dravidian refuses to go to bed with any other race of men.
Thus one has: "boong-moll ... A prostitute favouring dark-skinned men: Aus. c.: since ca. 1935." ('A Dictionary of Slang & Unconventional English ', Eric Partridge. ed. P Beale. 8th ed. London: Routledge, 2002, p.117) But "moll" mostly means "a girl" ('The Slang Dictionary', John Hotten Camden. London: Chatto & Windus, 1874, p.180) & not always 'prostitute' - clearly Shudra Penis Envy is why men call such women 'whores'.
1) In Australian regions with a shortage of Abos, Boong Molls are famed for their pursuit of other Blacks: "The Negroes were at first amazed by the attention paid them by Sydney girls. Then they became arrogant ... According to white Americans in no other Pacific port do white women behave in such a depraved & abandoned fashion. And for this reason Sydney has become the favorite port of call for Negro seamen ... some of our 'Boong molls", as we term it in the police force, reserve themselves exclusively for the black men. They watch the shipping news carefully for arrival dates of American ships." (Smith's Weekly, ca. 1946, Reel 34, Part II, #071, in: 'Red Seas: Ferdinand Smith & radical black sailors in the US & Jamaica', Gerald Horne. NY: NYU Press, 2005, p.317 fn 24)
2) "A harlot who consorts with Negroes or other dark-skinned men is called a boong moll; boong, of course, is the popular Australian term for an aborigine or a native of New Guinea. Other terms generally applied to harlots include Charley or Charlie, chippy, K.P. (a common prostitute) & lowy." ('The Australian Language', Sidney John Baker. S.Melbourne: Sun Books, 1981, p.145)
3) "boong moll. noun. A prostitute who serves dark-skinned men. A combination of Boong (an Aboriginal or dark-skinned man) & moll (a prostitute). Australia 1953." ('The concise new Partridge dictionary of slang & unconventional English' Eric Partridge. ed. T Dalzell & T Victor. London: Routledge, 2008, p.81)