Teemo is a small yordle scout and one of League of Legends' most recognisable champions, known for stealth, mushrooms and a deceptively cheerful attitude. The Brazilian Portuguese version of the game gives him a localised voice, and short lines like this one are lifted by players for soundboards and clips. Because the phrase is short, clear and easy to recognise even without translation, it keeps appearing in streams, edits and memes whenever someone wants to signal they are ready, armed and in on the joke.