Green’s Dictionary of Slang

(Aus.) a large, but not especially spicy, sausage.

1914		Sport (Adelaide) 17 July 3/6: The whole affair concluded with a feed of pancakes and fritz .
1963		R. McGregor-Hastie Compleat Migrant 106: Fritz: sausage.
1965		Kings Cross Whisper (Sydney) vi. 3/2: Four slices of slightly mouldy pork-fritz.
1972		G.W. Turner Eng. Lang. in Aus. & N.Z. (rev. edn) 123: Sausages in South Australia [...] retain German names [...] and the same influence is seen in the now standard use of fritz for a German sausage.
1981		P. Barton Bastards I Have Known 114: A half-eaten hunk of fritz.
1993		Aus. Word Map 🌐 pok fritz. a type of continental meat sausage: Would you go to the shop and buy 12 slices of pork fritz, please?
1997		(ref. to 1906, 1912) it (Canberra Bushwalking Club newsletter) 🌐 Members of the Warragamba Walking Club (1906) carried small cabin biscuits, dates or figs, a piece of fritz [...] For their first long distance journey (1912) Myles Dunphy and Bert Gallop carried pork fritz, German sausage, bacon [...].