Overstimulation Videos, often referred to as 'Sludge Content,' are a viral video format popularized on platforms like TikTok and YouTube Shorts. These videos typically feature a split-screen layout where a primary piece of content, such as a cartoon clip or a podcast, is paired with unrelated, highly stimulating visuals like Subway Surfers gameplay, kinetic sand cutting, or GTA V ramp challenges. The term 'Sludge' emerged as a critique of how these videos cater to declining attention spans, effectively feeding the viewer multiple streams of sensory input simultaneously. While initially used to bypass copyright filters, the format evolved into a self-aware meme category representing the chaotic state of modern digital consumption and 'brain rot' culture.