HARDTACK
NOUNS
1899 — ANGEL FOOD hardtack → US military, jocular
1916 — ARMOR PLATE hardtack → US military sl.
1963 — ANGEL CAKE hardtack → Amer. military sl.
NOUNS
1899 — ANGEL FOOD hardtack → US military, jocular
1916 — ARMOR PLATE hardtack → US military sl.
1963 — ANGEL CAKE hardtack → Amer. military sl.