I iz is a blob-like character of the species Zizz. He is the leader of all Zizzes, although it's a mystery how Zizzes can tell each other apart, for they all are pretty much identical (except for the occasional size difference). I iz was created back in, oh, say 1998 or so by Michael Mesorana (aka Tibby or Poofmeister), and stars (along with other Zizzes)in a series of short cartoons made by Will Buck (aka Vlad). See I iz's quotes below:
"But I iz whut you iz when we iz not me waz. Iz you?"
Security Guard: What are you doing in here?
Kid: Iz it coz i iz bla..bla.. (notices guard is black) ..wearing misfits?
Kid's friends: *break down in hysterics*