mocca, n. — Green’s Dictionary of Slang

mocca n.

[SE moccasin, the preferred footwear for such individuals; thus orig. group name: the moccasin people]

(Aus.) one of the Melbourne equivalents to the bogan n. (1)

2003		Aus Word Map 🌐 a bogan, or a no-good-sort who favours moccasins as everyday footwear: Those people down the road are a bunch of moccas.
2011		Madrigal Communications: Living east of Boganville? 19 June 🌐 [T]he Riverina has the gullie; Victoria has the Scozzer and Melbourne the mocca.