The shout comes from 300, the 2006 film about the Battle of Thermopylae, in which Gerard Butler plays King Leonidas of Sparta. In the scene, Leonidas delivers the line before kicking a Persian messenger into a deep well, a moment that quickly became one of the film's most quoted scenes. Clips of the shout spread across early YouTube, remix videos and later TikTok and reaction edits, where it was reused far beyond its original context. It endures because the delivery is instantly recognisable, even to viewers who have never seen the full film.