Green’s Dictionary of Slang

1. an annual holiday.

1909

Farmer & Henley Sl. and Its Analogues (rev. edn).

2. (Aus.) a year’s jail sentence.

1900

Bulletin (Sydney) 8 Dec. 26/4: In ‘Push’ Society. / Chopper Marks (addressing the assembly at the Rocks dance-room): ‘Ay! They’s goin’ to be a benefit for Jago – ye all know Jago – ’im as is jist done ’arf a annual for surgery on his bride. Blokes a deener, girls a nod.’.

3. (Aus.) a bath.

1941

Baker Popular Dict. Aus. Sl.