A person who won't shut the fuck up when you're watching a show, sporting event or a movie, and has to comment about everything (especially political ads). Will also comment about how people look on tv.
n. The belief that a society is greater than the sum of its parts, and that the members of an organization ought to work toward improving the organization. Often accused to be "communist" or "fascist".
Communitarianism is perceived to be evil because it opposes the individualistic doctrine of our society.