WordNet (r) 3.0 (2006):

snafu
    adj 1: snarled or stalled in complete confusion; "situation
           normal--all fucked-up" [syn: fucked-up, snafu]
    n 1: an acronym often used by soldiers in World War II:
         situation normal all fucked up
    v 1: cause to be in a state of complete confusion

Moby Thesaurus II by Grady Ward, 1.0:

88 Moby Thesaurus words for "snafu":
   Chinese puzzle, Gordian knot, Rube Goldberg contraption, anarchic,
   anarchy, arsy-varsy, ass-backwards, ball up, balled up, bollix,
   bollix up, bollixed up, bugger, bugger up, can of worms, chaos,
   chaotic, complex, confound, confuse, confused, confusion, cook,
   crab, cramp, crimp, fabulous formless darkness, foul up, foul-up,
   fouled up, fumble, galley-west, garble, gum, gum up, hash up,
   hassle, helter-skelter, higgledy-piggledy, hugger-mugger,
   in a mess, jumble, jumbled, jungle, knot, labyrinth, license,
   louse up, maze, meander, mesh, mess, mess up, misrule, mix up,
   mix-up, mixed up, morass, muck up, mucked up, muddle, muddled,
   perplex, pi, play hell with, play hob with, queer, ravel, riffle,
   scattered, scramble, screw up, screw-up, screwed up, shuffle, sink,
   skimble-skamble, snake pit, snarl, snarl up, tangle, tangled skein,
   topsy-turvy, tumble, upside-down, webwork, wheels within wheels,
   wilderness



V.E.R.A. -- Virtual Entity of Relevant Acronyms (February 2016):

SNAFU
       Situation Normal All Fouled Up (slang)