Noun. A person without common sense. A moron. Someone who shouldn't be in control because of his lack of common sense.
Example 1: That Greenblatt presented the teller with his ID before robbing the bank.
Example 2: A Greenblatt is running that network. Why else would they cancel that show.
Example 2: A Greenblatt is running that network. Why else would they cancel that show.
by Richard January 6, 2005