Nibby is a original character from Learning with Pibby: Apocalypse, a TV show. The premise is simple: A preschool cartoon character called Pibby finds herself misplaced in other television worlds, which are being corrupted by a dark force (The Darkness). Nibby was a OC made from the fandom of the show by a user called @justice_wooden (or GP461) on Twitter (which all the above info, he doesn't have ANY knowledge of. 0%. Nada, None at all. He doesn't know who Pibby is).