foo bar x fubar
The term foobar is a common placeholder name, also referred to as metasyntactic variable, used in computer programming or computer-related documentation.
FUBAR is an acronym that commonly means “Fucked Up Beyond All Repair” (used to describe the state of some equipment) or “Fucked Up Beyond All Recognition” (used to describe a situation or scenario), which now exists in many variations. Although it originated in the US Armed Forces, its usage has spread to civilian environments.