The 'What Are You Doing In My Swamp?' meme originates from the 2001 DreamWorks animated film Shrek. In this iconic scene, the titular ogre steps out of his home to find his peaceful swamp overrun by displaced fairy tale creatures, leading to his thunderous and frustrated roar. While the quote has been a staple of pop culture for decades, it saw a massive resurgence through internet surrealism and MLG montages in the early 2010s. Today, the meme is widely used to express territorial protective feelings over a niche interest, or simply to humorously tell someone they are intruding where they don't belong.