Someone who can't decide what to eat at McDonalds, and holds up the line.
Person 1: "Would that guy hurry up and order!?"
Person 2: "I know right, he's such a McDoodle"
Usually referring to a female, a uncoloypoi is someone who cannot think critically, and never uses logic.
Person 1: "why does she keep acting like that!?"
Person 2: "she must be a uncoloypoi."
