No single film, show, or creator is reliably credited with this exact clip, so it is best understood as an internet-era novelty roar rather than a quote from a known work. Short, exaggerated animal noises travel well on meme pages and in short-form video because they need no translation and work as an instant reaction. This version leans into the joke with its deliberately misspelled dinosaur name and playful spelling of the roar, which helps it stand out in feeds full of more realistic sound effects and keeps it useful for lighthearted edits.