A person who is ignorant and generally has no idea about anything.

Noun: a friend who is usually only called upon by a friend when a more primary/prominent friend is unavailable.

Taken from the term “second string” in an athletic competition situation. In football, if the star quarterback gets injured during a play, the second string is called off the bench to replace him/her. A “Second String Friend” is essentially benched until needed, if ever.

Synonyms: Plan B, Second Choice, Secondary Friend, Benched Until Needed

An alternative term for idiot or moron. Usually used in the UK to describe someone who is incompetant or gormless. Taken from the name for the popular Jim Henson Puppets.

A right useless fuckwit.

a person who defies explanation with regard to common sense and logic, exhubing an air of confidence that is mutually exclusive to that of their accomplishments or ability

A nicer way to say you are an idiot, or a retard.

E.G. "OMG you are such a muppet!" or "Haha you muppet!"

You could use this when talking to friends if you don't want to use something as harsh as idiot.

Someone who is useless until you shove your fist up them - Just like Kermit !