Ric Flair, known as the Nature Boy, built the Woo into his signature catchphrase during a decades-long professional wrestling career with promotions including WCW and WWE from the 1970s onward. Delivered while strutting in elaborate robes, it became inseparable from his flamboyant character. The yell spread far beyond wrestling through interviews, chants from live crowds and later short-form video, where fans and creators use it as a universal shorthand for confidence, celebration and showing off after a win.