Ship and foghorn blasts are classic maritime sounds, recorded for navigation and signalling long before the internet existed, so this clip has no single known meme origin. Online it took off as a dramatic punchline sound, rising with MLG-style montage edits in the mid-2010s where creators paired it with air horns and bass boosts to announce something huge. Because the sound is instantly recognisable as power and scale, editors still use it for reveals, wins and fails that need maximum impact, and its four-second length makes it easy to drop cleanly into a timeline.