"Kek", from "kekeke"/"???", a Korean onomatopoeia of laughter utilized in the same way to "LOL", would be the Korean equivalent with the English "haha". Because this is frequently used in StarCraft matches, Blizzard, Starcraft’s builders, decided to reference it in Wow (2004): when a player in the Horde faction types "lol" using the /say messagin