Copycat retard
A group of people or an individual that is so mentally retarded that they cannot think for themselves, so has to copy catchphraises or mimic certain hand gestures such as clicking fingers off a fellow slightly smarter retard of the group.
simon and ryan are so retarded they copy adam in every way possible this is from a simple click of the fingers to repeating everything that he has just said in a previous sentance, from now on people like these are called copycat retards.