armoured cow n.
1. tinned milk.
|S.F. Chronicle 1 June H5/7: The draftees assigned to Camp Claiborne, in Louisiana, got out a glossary of slang terms to describe everyday things in army life [...] they call canned milk an ‘armored cow,’ and the white fish a ‘sewer trout’.|
|AS XXI:3 Oct. 196: If a soldier in the mess hall wants the canned milk, he is presumed to say, ‘Pass the armored cow, please.’.‘American Army Speech’ in|
|(con. WWII)Forfeit to War 147: Just before it was time to go ashore, Stripey went below to divide up the ‘armoured cow’ (as the sailors called tinned milk).|
2. canned corned beef.
|Lore and Lang. of Schoolchildren (1977) 183: ‘Armoured cow’ proclaims that tinned corned beef is on the menu.|