Ian
During the F**kface era Andrew mentions that he is really good at drawing a man looking up. Confused the guys get Andrew to tell them how to draw it. It takes Geoff several tries to get close but Gavin pretty much nails it on his first try. Later Andrew is working on a project and makes a Discord server to communicate with the community. There were two people named Ian in the server and the community decided to prank Andrew and all change their names to Ian to confuse him. Later on the guys decided to name the guy looking up drawing as Ian and he became a mascot of sorts.
Regulation History: The origin of Ian. Link here.