What is BM? The Salty Story of Disrespect in Esports
December 8, 2021. In many chat forums and in-game chats during League of Legends, the phrase “BM” is thrown around. It translates to “Bad Manners”. Riot takes a lot of pain to ensure the game is not toxic and that toxic behavior is punished and cooperative, friendly gamers, on the other hand, are rewarded.