Angus Armanasco, n. — Green’s Dictionary of Slang

Angus Armanasco n.

[rhy. sl. = brasco n.; ult. Aus. racehorse trainer Angus Armanasco (1907–2005)]

(Aus.) a lavatory.

1983

R. Aven-Bray Ridgey-Didge Oz Jack Lang 11: Needing to shake hands with his wife’s best friend he adjourned to the Angus Armanasco to splash the boots.