CaseOh, the online persona of streamer Case Baker, broke out on Twitch and TikTok in 2024 with horror game streams and loud, expressive reactions that were endlessly clipped. 'Bro, that's a chair' is one of his throwaway in-stream lines, the kind of dry correction he drops when something painfully obvious happens on screen. The moment was clipped and shared across short-form video, where creators repurposed it as a universal reaction to fails and dumb takes. Like many streamer catchphrases, its power comes from recognition: fans hear his voice and instantly know someone just messed up.