The phrase comes from the NPC live format that spread on TikTok, where Brazilian creators act like video game characters and repeat catchphrases when viewers send virtual gifts. Milho, the Portuguese word for corn, became one of those repeated gift reactions, turning a simple food item into an absurd moment of gratitude and shock. Short clips were reposted, remixed and used as reaction audio in other videos, which helped the line survive outside the original livestreams as a standalone meme sound.