Green’s Dictionary of Slang

1. (Aus.) tough; ill-bred.

1725		View of London and Westminster 23: These Low-heel’d Gentleman [i.e. chairmen who sell private secrets to the press] shall watch impatiently for the last gasp of a Person of Quality, as Jew for an Opportunity to debauch his Maid .
1914		Bulletin (Sydney) 6 Aug. 26/1: To see nice, upstanding lads, with a few of the rudiments of fist fighting, egregiously man-handled by a low-heeled waiter in a slopped vest is as pitiful a spectacle as to behold leopards bitten to death by a sheep.
1944		Braidwood Dispatch (NSW) 18 Aug. 1/1: Mr. Roper [...] regarded the ‘yes’ propaganda touching service men as merely a ‘low-heel’ type of thing to influence the soldiers’ vote.
1953		Newcastle Morn. Herald (NSW) 4 June 2/9: Tuesday's demonstrations [...] just about reached the lowest in lowheel manifestation of our loyalty to the Queen. The display of tawdry and unwashed bunting, hung out unashamedly and without any effort to artistry, reminds me of washling day in Naples.

2. (Aus.) of a woman, sluttish.

1950

Eve. Advocate (Innisfall, Qld) 26 May 8/4: Snorted Mrs. Byrne: ‘[...] I don't talk to that lady. She called me a dirty, low-heeled thing, then she hit me, and when I went to hit her back she called her two daughters and her son out to belt me’.