From the military, it's an acronym for \r\nTaken\r\nOut\r\nBack \r\nAnd\r\nShot in the\r\nHead\r\n\r\nUsually it's a term to make reference to a person that gets a group into [FUBAR] occurrences multiple time.\n> "Ollie! You should be TOBASH! You've gotten this all [FUBAR], your a freakin' [clusterfuck] magnet. We're gonna [deep six] yo ass [bytch]!\n