bigot

n. A person who is religiously attached to a particular computer, language, operating system, editor, or other tool (see religious issues). Usually found with a specifier; thus, `cray bigot', `ITS bigot', `APL bigot', `VMS bigot', `Berkeley bigot'. True bigots can be distinguished from mere partisans or zealots by the fact that they refuse to learn alternatives even when the march of time and/or technology is threatening to obsolete the favored tool. It is said "You can tell a bigot, but you can't tell him much." Compare weenie.