неразбериха

1) General subject: Byzantian complexity, Byzantine complexity, Mickey Mouse, a nice kettle of fish, a pretty kettle of fish, babelism, ball up, balls up, bewilderment, buggers muddle, cobweb, foul up, fuck-up, fuzzbuzz, helter skelter, helter-skelter, hodge podge, hodgepodge, hugger muggery, hugger-muggery, hurra's nest, hurrah's nest, hurray's nest, jungle, mess, mess up, mess-up, mix up, mix-up, muddle, pell-mell, pellmell, ravelment, rough and tumble, rough-and-tumble, shambles, skein, snarl up, snarl-up, stramash, tangle, tanglement, the law of the jungle, three-ring circus, topsy turvy, topsy-turvy, topsyturvy, topsyturvydom, welter, whirl, confusion, mishmash, addlement, Chinese fire drill, dog's breakfast, dog's dinner, shuffle, rigmarole

2) Colloquial: mix, mull

3) American: hoorah's nest, hooray's nest, snafu

4) British English: shambolic situation

5) Rude: ball-up, balls-up

6) Jargon: Brodie, cock up, cockup, flap, muck-up

7) Onomatopoeia: hubbub

8) Aviation medicine: fubar

9) Makarov: cobwebs, foul-up, mud, printer's pie

10) Taboo: ass-up, hell of a mess, merry hell