Fire in the hole is a traditional warning shouted before an explosive is detonated, long used by soldiers, miners, and demolition crews to clear the area and prevent injuries. The phrase moved naturally into action films and first-person shooters, where players shout it before throwing a grenade or setting off a charge. From there it became a familiar soundboard clip, reused in short videos, streams, and edits whenever a blast, prank, or sudden twist is about to land. Its staying power comes from instant clarity: everyone understands, in three words, that something is about to blow up.