Green’s Dictionary of Slang

bronze n.2

also bronza, bronzo
[its colour]

1. (Aus., also bronzer) a copper coin.

[Aus]Sydney Sportsman (Surry Hills, NSW) 20 Apr. 3/7: There are friends who’d do you for your bank / The bronze, the white, and red.
[Aus]Tweed Dly (Murwillumbah, NSW) 18 Jan. 7/5: ‘YawI set? Then come inter the ring, spinner.’ ‘Now, fair go, an’ don’ kick them bronzers!’.

2. (Aus.) the anus, the posterior.

[Aus]Baker Aus. Speaks 105: Bronzo, anus (a variation of bronze, used similarly).
[Aus]D. Niland Big Smoke 164: He roared laughing and gave her a slap on the seat. ‘The biggest bronza in the world-and just think, you’re all mine.’.
[Aus] ‘Whisper All Aussie Dictionary’ in Kings Cross Whisper (Sydney) xxxii 7/1: bronze: Posterior.
[Aus]B. Oakley Salute to the Great McCarthy 75: This is the last day you spend sitting on your bronzes in the sun. Get up!
[Aus] (ref. to 1953) Australian (Sydney) 25 Nov. 10/2: In the age of innocence (1953), we fell about at the lines: ‘There’s rust on me bust and me bronze is all tarnished’ [AND].
[Aus]J. Byrell Lairs, Urgers & Coat-Tuggers 216: But it was a win nonetheless and a bit better than a boot up the bronze.

3. excrement.

[UK]J. Morton Lowspeak 31: Bronze – faeces.

In derivatives

Bronzeville (n.)

(US) a city’s primarily African-American centre, esp. that in Chicago.

News (Paterson, NJ) 24 Dec. 1/6: [headline] Scouts earned Money To Buy Gifts For Poor / Bronzeville Boys Ran Errands and Cleaned Walks.
[US]Pittsburgh Courier (PA) 10 Nov. 6/7: [headline] ‘Mayor of Bronzeville’ Inauguration Proves To Be Gala Occasion.
[US]Pittsburgh Courier 16 Mar. 4/3: The foremost Negro shoe store in America is operated [...] by Jim Knight, a former ‘Mayor of Bronzeville’.
[US]Chicago Sun. Trib. 28 May pt 4 8/: [He] called out attention to a young colored girl [i.e. Gwendolyn Brooks] who, tho utterly unknown, had what he called ‘a deep, genuine talent’... When her ‘A Street in Bronzeville’ was published [etc].
[US]Chicago Trib. 21 Sept. 1/7: Scott and the other two men, operating as the Bronzeville Enterprises [...] picketing certain south side stores.
[US]Chicago Trib. 8 June 61/1: Bronzeville, the city’s [i.e. Chicago] bustling but segregated African center.

In phrases

bronze up (v.)

(Aus. prison) to register a ‘dirty protest’ by smearing one’s cell walls with faeces.

[Aus]Tupper & Wortley Aus. Prison Sl. Gloss. 🌐 Bronze-up. To smear excreta over one’s body or livingquarters as a form of protest. This is not widely practised and in fact other prisoners regard it as a sign that the perpetrator is becoming unstable.
ugly as a hatful of bronzas (adj.) (also ...of arseholes)

very ugly.

[Aus]D. Niland Call Me When the Cross Turns Over (1958) 139: I know the one with an ugly face like a hatful of bronzas.
[Aus]R.G. Barrett Mud Crab Boogie (2013) [ebook] Hebe was a complete hump and uglier than a hat full of arseholes.