facterion - A person who knows too much and won’t stop telling you. They

A person who knows too much and won’t stop telling you. They’re like a fact virus. They’re harmless but they’ll make you feel dumb.

You just told me 5 facts about clouds. I’m going to die.

You know more about cats than I do. You’re a facterion.

You’re wearing gloves in my house. You’re a facterion.