The phrase Matheus vai treinar LOL translates from Portuguese as Matheus is going to train in LOL, with LOL referring to League of Legends, the multiplayer battle arena game by Riot Games. Clips like this circulate on Brazilian and Portuguese gaming soundboards, where short voice notes from friends and streams are saved and replayed out of context. Its humor comes from treating a normal training session as a notable event. It has stayed in rotation as a quick reaction for anyone announcing a practice session or a ranked climb.