Place it at the end of a visual gag, just as the reveal lands, then follow it with the Bruh Sound Effect for a deadpan reaction. For another absurd sequence, open with Goofy Ahh Sounds and finish with this clip as the final punchline, keeping the surrounding edit fast and visual.
About this sound
This is a very short, exaggerated rawr lasting just over a second, delivered as a tiny, unserious monster noise rather than a real roar. It feels deliberately awkward and childish, turning a moment that should seem fierce into something funny and unserious. That contrast gives it a playful, chaotic edge that keeps the listener from taking it seriously at all.