Kennen, the Heart of the Tempest, joined League of Legends in 2010 as a fast, energy-based yordle ninja from Ionia, and his laugh emote has been part of his in-game voice set ever since. Players trigger it with the laugh command to taunt lane opponents, a practice that spread through montages, streams, and highlight clips. Its squeaky, electric delivery made it stand out from other champion laughs, so editors kept reusing it outside matches as a shorthand for cocky, playful BM in MOBA culture.