The Bruh sound became a staple of online meme culture as short reaction clips spread across YouTube, TikTok and Instagram, where creators needed a quick way to show disbelief without explaining the joke. Its single-word format made it easy to reuse over fails, awkward interviews, gaming clips and everyday mishaps, and it travelled well because the feeling it conveys needs no translation. Years after its first viral uses, it remains popular because it is instantly recognisable, fits almost any disappointing moment and works as a shared punchline for audiences who have seen it countless times before.