Thunder sound effects have been a staple of film, radio and online video for decades because a single rumble can instantly establish weather, mood and scale without any visuals. The word geluduk is used in Indonesian to describe the low, rolling sound of thunder, which is why this version is often searched for by creators making storm, horror and drama content in that language. As a short, standalone clip, it is easy to drop into edits, memes and presentations where a natural storm sound is needed.