Exclamatory. U.S. Military Acronym for Bend Over Here It Comes Again. Best used when expecting to deal a familiar unpleasantness. Bohica! Look's like there are going to be some more layoffs.
BOHICA
WIKIMEDIA LIST ARTICLE
FUBAR; F.U.B.A.R.; Poor Bloody Infantry; BOHICA; Fucked up beyond all recognition
<humour> /bo-hee-ka/ {Bend Over, Here It Comes
Again}.
FUBAR
WIKIMEDIA LIST ARTICLE
FUBAR; F.U.B.A.R.; Poor Bloody Infantry; BOHICA; Fucked up beyond all recognition
Fouled / Fucked Up Beyond All Recognition / Repair (Reference: telecommunication-slang, Usenet, IRC)