snafu (n.)youdaoicibaDictYouDict[snafu 词源字典]
1941, U.S. military slang, acronym for situation normal, all fucked up, "an expression conveying the common soldier's laconic acceptance of the disorder of war and the ineptitude of his superiors" ["Oxford English Dictionary"]. As an adjective from 1942. In public explanations the word typically was euphemised to fouled.[snafu etymology, snafu origin, 英语词源]