The clip comes from The Adventures of Jimmy Neutron, Boy Genius, the Nickelodeon animated series that ran from 2002 to 2006 and followed the young inventor and his friends in Retroville. Short reaction lines from cartoons like this were later ripped and shared on soundboards and in meme edits, where a single word could be reused out of context. The boi delivery became handy as a standalone response, separate from any one episode, and it remains popular because Jimmy's voice is distinctive and the reaction translates instantly in chats, streams and short videos.