Well, first of all it's an acronym that us Sys Admins (SysOps) like to refer to ourselves as. Our favorite acronym is "luser" - now can you guess what that stands for?

The true roots of the term "BOFH" come from a long line of writings, if you're not a Sys Admin, I don't suggest reading them (they might offend some lusers)... there are links below where those writings can be found. You have been forewarned!