C4 is a throwable explosive in PUBG: Battlegrounds, and its in-game audio became memorable because the warning cue gives nearby players a brief moment to react before detonation. That countdown-to-blast structure made the sound easy to reuse in short edits, especially on gaming compilations and meme videos. It stays popular because even people who do not play PUBG immediately understand the pattern: beeps mean danger, and the explosion delivers the joke or the payoff. Similar high-alert gaming clips include enemy spotted and bomb has been planted.