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Concise Oxford English Dictionary
snafu
sna’fu:, ‘snafu:
informal

■ noun a confused or chaotic state; a mess.
■ verb N. Amer. throw into chaos.

1940s: acronym from situation normal: all fouled (or fucked) up.
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EngMac
snafu
adj. amer. inf. хаотичен, збркан
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Merriam-Webster Collegiate® Dictionary
1sna·fu
Pronunciation: sna-‘fü, ‘sna-ˌfü
Function: noun
Etymology: situation nounormal all fucked up (fouled up)
Date: circa 1941

: a situation marked by errors or confusion : MUDDLE also : an error causing such a situation
2snafu
Function: adjective
Date: 1942

: snarled or stalled in confusion : AWRY
3snafu
Function: transitive verb
Date: 1943

: to bring into a state of confusion