What is a Wiki Site?

According to Wikipedia, the world largest wiki site:

A Wiki ([ˈwiː.kiː] <wee-kee> or [ˈwɪ.kiː] <smeg-ma>) is a type of website that allows trolls to add, remove, or otherwise edit and change most content very quickly and easily.

And that is it! If you needed that explained to you, congratulations on being part of the Greatest Generation. Don't let the nurses steal your pills.