That guy who begins his sentences with "Actually..." and corrects you to stroke his own ego.

Technical Tori is a female who does much the same.
Morgan: "What time is it?"
Paul: "It's 11:30."
Daniel: "Actually, it's 11:29!"
Morgan: "Dude, Daniel, don't be such a Technical Tony."
by nostringer January 11, 2012
Get the Technical Tony mug.