How to define 'Stereotype' for a stupid person?

its a label put on a certain group of people or a race. its says 'this type of person always does this'. WATCH THIS VIDEO AND YOU WILL HAVE A PERFECT UNDERSTANDING a href="http://www.youtube.com/watch?v=wCgx8zM3woQ" rel="nofollow"http://www.youtube.com/watch?v=wCgx8zM3w…/a