Nice one BlackSwan.
AS an aside, the term FUBAR was the original expression (at least as I recall it). It originally stood for
Fouled Up Beyond All Recognition Yes it was Fouled not Fxxx'ed.
It has of course been adapted over the years. It was IT geeks who adapted it to be FOOBAR. Here are etyomology pages for those interested.
Although in general the etymology of these terms may never be known with full certainty.
Maybe someone can email the HOT FOR WORDS chick...