The sound comes from the entrance of WWE wrestler Stone Cold Steve Austin, whose arrival was announced by shattering glass before his theme music began. It became closely tied to his rebellious Attitude Era persona in the late 1990s, when Austin was one of wrestling's biggest stars and his entrance alone could bring a crowd to its feet. As clips spread through wrestling highlights, reaction videos and meme edits, the glass break took on a life of its own as shorthand for a confident, disruptive entrance, which is why creators still use it decades later.