This legendary clip originates from the golden era of YouTube around 2012, specifically from the 'Scary Games' series featuring brothers Olajide 'KSI' Olatunji and Deji Olatunji. In the scene, the two are huddled together playing a horror title when a sudden jumpscare causes both to erupt into a high-pitched, synchronized scream of pure terror. The raw sibling energy and the sheer volume of their reaction became an instant viral hit, cementing their status as reaction kings. Culturally, this meme is the go-to template for expressing absolute panic, shared fear, or a chaotic 'fight or flight' response to unexpected news. It perfectly represents situations where one is caught off guard by something terrifying or overwhelmingly stressful. Example captions include: 'When you and your friend see a spider start flying,' 'Hearing a floorboard creak when you're home alone at 3 AM,' and 'Me and my sibling when our mom uses our full names.'