a teen in a group of friends who is often the "bitch" of the group and is made fun of for being less mature or ignorant in many situations. Often has not fully completed puberty.

1. Accepting the term "Muppet" to denote a persons total lack of basic common sense, this logical extension would suggest that, whilst the subject approximates to the qualities and ideals of muppethood, inclusion in the "Muppet" category would require significant mental development.
2. A retarded muppet.

One who talks about guitars but never plays them. Also talks like a muppet.