A term used to describe a person who has no idea what they are doing at work, life or just in general but they think they do.
Michael: Hey, do you know what Adam has been up to this morning?
Evan: Ya, I don't know why but early I saw him in his office rubbing a soothing stone in his hands and whispering "Fuzz, Fuzz, Fuzz" to himself.
Michael: Weird. I guess we'll never know what a Plese is really doing.