A clueless person who insists on "informing" everyone.
An idiotic person that thinks they are intelligent, but in reality know absolutely nothing about everything.
The person who is always talking about anything and everything while everyone else rolls their eyes and talks shit about how stupid they are after they leave the vicinity.
Everyone felt that they should hold their laughter in until the daaligtranslata left. It was the courtious thing to do. After all, it's not his fault he is a fool.