From soldiers' slang, this acronym for a messed-up situation became the title of a hit 1944 stage comedy
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military ranks in 1944, FUBAR is acronym slang that means fucked up... [DOC] [TLE] COMBAT MilTerms: F [PAR] [nb: Vietnamese term: Phi Cong, Phi Hanh Gia] Also, slang acronym meaning ... 
or retirement; see RIP, ROAD, STAND-DOWN, HORS DE COMBAT, UP OR OUT.