Green’s Dictionary of Slang

(Aus.) a perquisite, a bonus, an ‘extra’.

1847		Guardian (Hobart) 8 Sept. 3/5: A friend at our elbow, acquainted with Colonial slang, tells us, that the hangings have been monstrous heavy!!! [AND].
1849		A. Harris Emigrant Family II 121: There was hangings to it, lad. She gave old Tom such a bang-up new Spanish bladed pocket-knife; one of them the old Jew sells for three bob.
1862		Bell’s Life in Sydney 2 Aug. 2/5: This fortunate gentleman, in addition to his ‘screw’ and the ‘hangings’, holds a military license for the purpose of dispensing the blessings of ’grog for the million’ [AND].
1899		L. Becke Old Convict Days 63: I was strapped up spread-eagled on the triangles. [...] While the flogger was fixing me up he said to me quietly, ‘Is there any hangings to it?’ meaning had I anything to give him to lay it on lightly.