Someone of inferior intellect to yourself, and who unwittingly does something incredably stupid. Relating to hand/string puppets used in the muppets etc. whom are, contrary to public belief, stuffed lifeless creatures. One who has a hand stuck up itself to help it function. A muppet.
A muppet is someone who’s name starts with an A and ends with an S and is always on top of your head being annoying and doesn’t leave you alone. They are very very very annoying and lie all the time.