Mumbo Weirdonai is a Bumbo created by Iskal85 in a build competition between himself and MumboJumbo. Iskall85 said that Weirdonai is Bumbo Cactoni's evil step-brother.[1]
Weirdonai is meant to represent MumboJumbo. MumboJumbo himself claimed that Weirdonai was the ugliest thing he had even seen, and it scared him more than a horror film he had seen the night before.[1]