The phrase I don't know and I don't care has circulated online as a generic reaction line rather than a single widely documented movie quote, shared in short clips for its blunt, everyday wording. Its popularity comes from how reusable it is, fitting school, work, gaming and group chat moments where someone wants to opt out completely. Because it needs no context or setup, creators can drop it into compilations and edits and viewers understand the joke instantly, which has kept the simple dismissal in regular meme rotation.