The WorldStar chant comes from the fight videos that made WorldStarHipHop infamous in the 2000s and 2010s, where bystanders would yell the site's name as two people squared up, hoping the clip would get posted. The shout became shorthand online for an incoming brawl, and editors now use the chant to cue a chaotic showdown in memes, compilations and reaction videos, often layering it with slap sound effects for extra punch. It survives because the joke is instant: hear the chant, expect the fight.