This quote is associated with Shrek, the ogre from DreamWorks' 2001 film Shrek. Online, the line became a durable reaction meme because the swamp setup makes the joke immediately clear: someone has entered a space where they are not wanted. It spread widely through YouTube edits, short reaction clips, and soundboards, and it still appears in gaming videos, Discord jokes, and low-effort meme compilations. Its staying power comes from how quickly the voice and character are recognized.