Filian is a virtual YouTuber known for chaotic VRChat streams and comedic voice impressions, and this short dinosaur noise comes from that style of live, unscripted humour. Once clipped, it spread through soundboards and fan edits, where its brevity made it easy to reuse as a reaction rather than a full joke. It has stayed popular because it needs no explanation: anyone recognises a playful roar, and Filian's delivery makes it sound both fierce and ridiculous at once, which fits memes, streams and short videos that rely on a fast laugh.