In 2019, a Twitter user posted a short video that would become one of the most viral sensations in internet history. The video featured a young woman, known as "The Rock-Paper-Scissors Girl" or "The Yellow Dress Girl," playing a game of rock-paper-scissors with a friend. The twist? The girl was wearing a yellow dress, and her outfit sparked a debate that would spread like wildfire across social media platforms. This paper explores the phenomenon of the Rock-Paper-Scissors-Yellow-Dress-Girl Twitter sensation, examining the factors that contributed to its virality and the cultural significance of internet memes.