What is Id-10-t?
1.
A term used when one wants to tell someone (like a coworker) that a third party (like a boss or a customer) is an idiot, but doesn't want said third party to know what they are really thinking.
pronounced I-D-(ten)-T
"Do you really think the boss knows what he's talking about?"
"No, he's such an ID-10-T."
See
