The 'That's Racist!' meme originated from the MTV2 dark comedy puppet show Wonder Showzen, specifically from a segment where a young boy pops into the frame to deliver the iconic line. While the show itself was a satirical parody of educational children's programs, the clip became a viral sensation on early internet forums like 4chan and Reddit during the mid-2000s. It is primarily used as a versatile reaction image or GIF to call out perceived racial insensitivity, though it is frequently employed ironically to satirize over-the-top political correctness. Its longevity in internet culture is attributed to the boy's wide-eyed expression and the perfect comedic timing of his sudden appearance.