Green’s Dictionary of Slang

bung n.⁷

(Aus.) cheese.

1919		W.H. Downing Digger Dialects 14: bung — cheese.
1924		(con. WWI) A.G. Pretty Gloss. of Sl. [...] in the A.I.F. 1921–1924 (rev. t/s) n.p.: bung or Bung-hole Cheese. So called by its alleged constipating effect.
1925		(con. WWI) Fraser & Gibbons Soldier and Sailor Words 40: Bung, Bungy, Bung-hole; Cheese.
1945		J. Henderson Gunner Inglorious (1974) 17: Kraft cheese (‘Best bung.’).
1968		G. Slatter Pagan Game (1969) 67: He had chawed away at dry rations of bread and bung.

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