Synonym for {PEBKAC}, e.g. "The user is being an idiot". Tech-support people passing a problem report to someone higher up the food chain (and presumably better equipped to deal with idiots) may ask the user to convey that there seems to be an I-D-ten-T error. Users never twig.
[glossary]
[Reference(s) to this entry by made by: {GWF}{PEBKAC}{pilot error}{UBD}]