Milio is a support champion in League of Legends, known for his cheerful personality and fire-based healing abilities, and this short clip comes from the Portuguese-language voice work associated with him. The phrase translates as you can do it, which explains why Brazilian and Portuguese-speaking players picked it up first before it spread through clips, streams and soundboards. Its appeal is simple: it is short, instantly understandable in tone even for listeners who do not speak Portuguese, and it turns an ordinary encouragement into a meme-ready reaction.