Green’s Dictionary of Slang

1. (Aus.) a conventional working-class (heterosexual) woman; a foolish woman [SE daft].

1966		Baker Aus. Lang. (2 edn) 213: daphne, a heterosexual female.
1983		R. Aven-Bray Ridgey-Didge Oz Jack Lang 25: Daphnes Stupid females.

2. (Aus.) a lesbian.

1985

B. Humphries Traveller’s Tool 28: An uncalled-for type of Australian sheilah named after a long-forgotten lezzo.

3. (S.Afr. gay) a deaf person; thus as adj., deaf.

2003

K. Cage Gayle.