RAYZORBLADE
As far as I gather the history of acronyms FUBAR and SNAFU they are originally very old army and telephone lineman terms. Most common FUBAR being Fouled/F****d Up Beyond All/Any Repair. One close variation is Situation Normal All Fouled/F****d Up. These terms were used to describe total failure of a system or equipment.
Mark
http://www.acronymfinder.com/af-query.asp?String=exact&Acronym=FUBAR