Submarine alarms have become a familiar shorthand for danger in film, television and online video, because the sound is instantly associated with a crew facing a crisis under water. Creators on short-form platforms reuse the klaxon whenever a situation turns serious, whether in gaming edits, reaction videos or comedy sketches that exaggerate a small problem into an emergency. Its staying power comes from that instant recognition, which lets a ten-second clip communicate urgency without any explanation.