Green’s Dictionary of Slang

a prostitute.

1886		Sporting Times 3 Apr. 2/3: ‘You must be what we call a noffgur’.
a.1890		Bird o’ Freedom cited in Barrère & Leland Dict. Sl., Jargon and Cant 89/2: Wrong ’uns at the Wateries, Noffgurs at the Troc, [...] Coryphyees by Kettner, Tartlets anywhere .
1900		Sydney Sportsman (Surry Hills, NSW) 24 Oct. 1/2: A number of the nofghas from the Wind Club, accompanied by their pensioners, were also there, and behaved in the disgusting filthy manner that attracts the crowd.
1903		Truth (Sydney) 8 Mar. 4/8: ‘MOSHA COHEN PARA TOCHTA NOFKA.’ which, interpreted into English meant ‘There goes scabby-headed Moses Cohen’s daughter, the w— ’.
1904		Sun. Times (Perth) 14 Feb. 1/1: That the prevalence of prostitutes has induced the Weet Australian to protect its staff [...] penmen and printers are to be sent home in a Black Maria to avoid the out all-night noffka.
1910		Truth (Brisbane) 15 May 1/3: [T]he real meaning of the word Wowser is as well-known as are the meanings of such words and phrases as larrikin, [...] nofker, and moll.
1936		M. Levin Old Bunch (1946) 17: In flats all over the neighborhood! White slaves, nafkehs.
1960		(con. 1930s) R. Barber Night They Raided Minsky’s (1968) 216: You phony French barefoot nafkeh.
1960		L. Bruce ‘Father Flotsky’s Triumph’ [recording] Kiki, you nafka, you!
1962		S. Longstreet Flesh Peddlers (1964) 306: What a nafka, eh?
1965		L. Bruce How to Talk Dirty 48: This noffka told me about a trick who didn’t want anything but a good beating.
1977		D. Powis Signs of Crime 194: Naftkeh Prostitute (Yiddish).
1989		W. Kotzwinkle Midnight Examiner (1990) 90: If that little nafka shot Tony Baloney, the ball game’s already over.