Green’s Dictionary of Slang

marmalade n.

1. (Aus.) popular adulation.

[Aus]Bulletin (Sydney) 7 Mar. 22/1: Mr. Gladstone resembles certain great men of Sydney in one respect, i.e., in his boundless appetite for ‘Marmalade.’ To the more cynical soul of Disraeli, indiscriminate applause was abhorrent.

2. (US) good spirits.

[US]Jackson Herald (MO) 28 Jan. 1/4: Kistner [...] has been absent for the past week. We cannot imagine what has been keeping him out unless he has fallen a victim to ‘rabbit fever’.

3. (N.Z. prison) prison-made alcohol.

[NZ]D. Looser Boobslang [U. Canterbury D.Phil. thesis] 113/2: marmalade n. 1 = jam.