Green’s Dictionary of Slang

(Aus.) methylated spirits, as an alcoholic’s drink.

1967		‘Whisper All Aussie Dict.’ in Kings Cross Whisper (Sydney) xxxv 6/1: goom: Methylated Spirits.
1983		R. Aven-Bray Ridgey-Didge Oz Jack Lang 29: Goom Methylated spirit.
1990		Tupper & Wortley Aus. Prison Sl. Gloss. 🌐 Goom. Alcoholic ‘brew’, particularly one containing methylated spirits; an aboriginal term.