Pentakill comes from League of Legends, the team-based multiplayer online battle arena game released by Riot Games in 2009. In a match, a pentakill is awarded when one player eliminates all five enemy champions before any of them respawn, and the game marks the feat with a distinctive announcer call. Clips of pentakills became a staple of gameplay highlights, streams and montages, and the sound travelled with them to short-form video and meme edits. It remains popular because it instantly communicates a rare, high-skill moment without needing any explanation.