Community content is available under CC-BY-SA unless otherwise noted.
It's a Bully, The Bully, or just Bully is originally the tertiary antagonist in Baldi's Basics in Education & Learning. He also made an appearance in SMG4's If Mario was in... Baldi's Basics, which parodies the original game.
He is a poorly modeled humanoid male that stands still around the school blocking the hallways, presumably existing in the game because it is believed that "every good school needs a good bully!", according to the text about him in the Principal's Office.