It all began with Nailong (奶龙 - "Milk Dragon"), a 3D animated alien dinosaur created in 2020. He is yellow, incredibly chubby, completely brain-dead, and loves eating

As Nailong's popularity exploded, he became the definition of "low-IQ brainrot" (低智/脑瘫). Older internet users felt physically repulsed by how inescapable this "cringe" dinosaur was. The internet decided to wage war.

To weaponize their hatred, noticed content creators didn't just call Nailong annoying - they re-contextualized him as a sinister, evil entity hiding behind a fake "cute" smile.

The lore of "Evil Nailong" is built entirely out of ironic, meme-driven catalysts and storylines. The lore has spiraled out of control, placing Evil Nailong into a cinematic universe of internet absurdity.