my mother’s away, phr. — Green’s Dictionary of Slang

my mother’s away phr.

[rhy. sl.]

(Aus.) the other day.

1902		Bulletin (Sydney) 28 Jan. 16/3: Me mother’s away, as I was swiftly flowing up the field of wheat in the bread-and-jam.
1951		Sydney Morn. Herald 1 Dec. see 1902 above.
1972		Dodson & Saczek Dict. of Cockney Rhy. Sl.