The 'You Must Be New Here' meme is a legendary reaction used to mock or patronize individuals who are surprised by standard, often chaotic, behavior in a specific online environment. Originally popularized on image boards like 4chan, the phrase is frequently paired with images of characters who have 'seen it all,' such as Willy Wonka or grizzled veterans. It serves as a rite of passage for newcomers, highlighting the gap between a novice's expectations and the harsh reality of long-standing internet culture. Today, it is widely used across social media to address naivety in politics, gaming, and finance, serving as a sarcastic greeting to anyone shocked by the status quo.