Green’s Dictionary of Slang

(Aus.) a prostitute or promiscuous woman, a young woman dedicated to hedonism; the equivalent and accomplice of a rev-head n.

1953		K. Tennant Joyful Condemned 21: There’s many a man thought he was going to stand over some little lowie and now he’s either looking through the bars, or else he’s mowing the lawn for her.
1967		‘Whisper All Aussie Dict.’ in Kings Cross Whisper (Sydney) xxxvi 4/1: lowey, an immoral young hussy very popular among young knockabouts.
1979		Sydney Morning Herald 3 Mar. 13: A group of bikies [...] stagger in and out, beer cans in hand, chatting up the ‘loweys’ who bang about beside the entrance waiting to be picked up [GAW4].
1983		R. Aven-Bray Ridgey-Didge Oz Jack Lang 35: Lowy Not a ‘lady’.
1993		B. Moore Lex. of Cadet Lang. 220: usage: ‘She’ll be easy mate, nurries (q.v.) — she’s a lowie from way back.’.