Foghorns developed from maritime warning systems designed to help vessels navigate when poor visibility made visual signals unreliable. Their low, powerful notes travel over water and became closely associated with ships, lighthouses, harbors, and foggy coastlines. Short recordings of these signals later found a second life in online video editing and soundboards. Creators still use them because the deep blast communicates nautical scale instantly, while its exaggerated weight can also transform an ordinary reveal or uncomfortable pause into a visual joke.