ratpack
n.— «It is a helicopter ride away from a military hospital, food comes from 24-hour ration packs, known to soldiers as ratpacks or compo and far from fresh, and the water is almost exclusively for drinking and cooking.» —“‘I think this is as normal as I’m ever going to get’” by Audrey Gillan Guardian (United Kingdom) Feb. 29, 2008. (source: Double-Tongued Dictionary)
Further reading
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Loretta in Shreveport, Louisiana, wants to know what lexical and dialectal clues linguists look for when guessing where someone is from. She also wonders: Do people with long careers in the military or who grew up in a military family have a...