unk-unk
n.— «Aerospace-men have come down with a severe case of what they call the “unk-unks”—the “unknown unknowns.”» —“Aerospace: End of the Gravy Years” Time Mar. 9, 1970. (source: Double-Tongued Dictionary)
unk-unk
n.— «Aerospace-men have come down with a severe case of what they call the “unk-unks”—the “unknown unknowns.”» —“Aerospace: End of the Gravy Years” Time Mar. 9, 1970. (source: Double-Tongued Dictionary)
