This is a generic dinosaur-style roar clip rather than a line tied to one confirmed character or film. Sounds like this became popular across video edits, gaming clips and short-form memes because they instantly signal danger, giant creatures or mock drama. The effect stays useful because it works in both serious and silly contexts, from fake jump scares to playful animal edits. Its short length also makes it easy to place on a visual punchline without covering too much dialogue or action.