Green’s Dictionary of Slang

1. the sun.

1938		L. Ortzen Down Donkey Row 43: ’Ere, the old currant bun’s getting warm.
1962		F. Norman Guntz 52: I arrived in Torremolinos and the currant bun shone down all the time.
1979		R. Barker Fletcher’s Book of Rhy. Sl. 39: The Empire, upon which the currant bun never sets.
1982		J. Sullivan ‘It Never Rains’ Only Fools and Horses [TV script] Yeah, get a bit of the currant bun on our backs, eh?
1991		B. Stewart Broken Arse I ii: You know what? I can look straight into the currant bun without blinking.
2001		D. Looser Boobslang [U. Canterbury D.Phil. thesis] 51/1: currant bun n. 1the sun.

2. the number one.

a.1945		L. Payne private coll. n.p.: 1 Currant bun.
1952		Argus (Melbourne) 13 June 4s/4: The old numerical jargon of the housie games — ‘currant bun’ for one, ‘how-do-you-do’ for two, ‘Doctor Bevan’ for seven.

3. a run.

1955

Argus (Melbourne) 5 Feb. 3/2: Hutton has now [...] raised his This and That, waiting for Miller to take a Currant Bun and send down the first Town Hall.

4. (Aus.) a German [= Hun n. (1)].

1967

‘Whisper All Aussie Dict.’ in Kings Cross Whisper (Sydney) xxxiii 4/4: currant bun: German. Hun.

5. (also currant) one’s son.

1969		S.T. Kendall Up the Frog.
1971		J. Jones Rhy. Cockney Sl.
1984		Partridge DSUE (8th edn) 280/1: not recorded before 1962.
1998		R.G. Barrett Mud Crab Boogie (2013) [ebook] ‘That’s about the size of it Les, me old currant bun’.
2001		M. Coles Bible in Cockney 16: This is the story of a geezer called Noah. He ’ad three currants. [...] 62: This is the Good News about Jesus Christ, God’s currant bun.
2001		D. Looser Boobslang [U. Canterbury D.Phil. thesis] 51/1: currant bun n. 2 one’s son.

6. (Aus.) a nun.

1983

R. Aven-Bray Ridgey-Didge Oz Jack Lang 22: Currant Bun [...] nun.

7. (Aus.) a gun.

1983

R. Aven-Bray Ridgey-Didge Oz Jack Lang 22: Currant Bun [...] gun.