An Undescriptive Person

People who constantly use the words/ phrases: "like", "you know", and/or "Ummm" because they never even knew what the hell they were talking about in the first place.

Teacher: "Stan, what do you mean by that?"

Stan: "Well, you know, Romeo ummmmm liked ummm, you know, what's her face, oh yeah....Juliet! But like, you know, both of their families like hated each other, and ummm I guess they, you know, ummm had to like run away from, you know...like their families!"

Another Student: "Man, you are an undescriptive person."