The line comes from Chandler Bing, the sarcastic character played by Matthew Perry in the television sitcom Friends. In the show, Chandler's humour often came from dry observations delivered at unexpected moments, and this short remark fits that style. Clipped from dialogue, it has circulated online as a compact reaction sound for moments of surprise at size or scale. Creators keep returning to it because the character is widely recognised, the wording is instantly understandable, and the deadpan delivery makes an ordinary observation feel funny without needing extra context.