Green’s Dictionary of Slang

Fritz adj.

German.

1915		in Peat & Smith Legion Airs (1932) [song title] Keep Your Head Down ‘Fritzie’ Boy’.
1917		F. Dunham diary 31 Oct. Long Carry (1970) 124: Our Company Stretcher Bearers had a roomy Fritz dugout.
1919		C. Hamilton William – An Englishman (1999) 218: He gathered from the sharp-sighted corporal that there were two Fritz planes overhead.
1929		(con. WWI) H. Odum Wings on My Feet 249: Talk ’bout coloured worker bein’ lazy, ought to seen them Fritzie boys.
1932		(con. WWI) L. Mann Flesh in Armour 258: ‘I tried to catch the sound of any Fritz engines’.
1939		Western Mail (Perth) 30 Nov. 2/1: Mr Snow comes on like a Fritzie barrage.
1941		A. Gurney Bluey & Curley 5 Nov. [synd. cartoon] Some lousy cow robbed that Fritzie officer.
2000		F.X. Toole Rope Burns 42: Could have knocked Tarzan out in three rounds, but Reggie want respect, so he punish that Fritzie boy.