Pufferfish, also called blowfish, are known for inflating their elastic stomachs with water or air when threatened, making themselves harder for predators to swallow. Clips of that sudden change have circulated widely in animal videos, documentaries and meme edits because the contrast is so visual. Online, creators reuse the puffing sound alongside the footage to exaggerate everyday moments of panic, pride or sudden confidence. Its appeal has lasted because the behaviour is real, instantly readable, and funny without context, even for viewers who have never seen a pufferfish in person before.