The 5Head meme is a popular Twitch emote featuring a distorted, enlarged forehead version of streamer Cadburry, though it is often associated with the 'Big Brain' meme culture. It first gained traction in late 2018 as a way for viewers to react to moments of extreme intelligence or, more commonly, to mock someone attempting to sound overly sophisticated. In the gaming community, '5Head' is shouted in chat when a player executes a complex strategy that leaves others baffled. It serves as the ultimate visual representation of pseudo-intellectualism, irony, and the 'galaxy brain' trope, making it a staple for anyone wanting to signal a truly massive cerebral capacity.