The phrase spread on TikTok in 2024 as the ew brother ew reaction, where creators paired the drawn out what's that brother line with gross food, cursed images and awkward reveals. Short edits and reposts turned the distinctive accent and disgusted pacing into a recognisable shorthand for revulsion, and the clip quickly moved into meme edits, gaming videos and group chats. It remains popular because the reaction is instantly understood even without the original video, making any ordinary moment feel dramatically wrong.