Green’s Dictionary of Slang

f.u.m.t.u. phr.

[abbr.]

fucked up more than usual.

Wikipedia.org 🌐 The U.S. Army, like any bureaucratic organization, produces its own acronyms, which often come to have meaning beyond their bare expansions. Slang acronyms include: [...] FUMTU – (Things are) fucked up more than usual.