Overkill is a well-known Halo medal callout used in multiplayer when a player earns four rapid kills. The announcer medal system became one of the series' most recognizable audio features, and clips like this spread widely through gameplay montages, esports compilations and short-form gaming edits. It remains popular because the word is brief, clear and instantly signals a dominant play. Online, it often appears alongside other familiar game callouts such as Enemy Spotted or Bomb Has Been Planted in mixed gaming memes.