Gragas is the barrel throwing Rabble Rouser from League of Legends, a champion known for his loud, drunken confidence and oversized presence in fights. The phrase to dentro is Brazilian Portuguese slang for I'm in, and Brazilian players and editors helped turn short dubbed lines like this into reusable reactions. Cut to just over three seconds, the clip travels easily between streams, shorts and chat soundboards, where it now stands in for instant agreement whenever a group is about to do something bold, funny or slightly reckless together.