The sound draws on the Spartan war cry popularised by the 2006 film 300, where Leonidas and his warriors shout before battle. Clips of that macho, echoing roar spread through YouTube edits, gaming montages and soundboards in the late 2000s and 2010s, detached from the film and reused as a standalone hype cue. It survives because it is instantly recognisable, works without context, and fits any moment framed as brave, reckless or over the top, from fitness clips to team entrances and ironic charges.