Yuumi is the magical cat champion from League of Legends, known for riding on allies and speaking in a bright, mischievous voice. Her meows have become a familiar shorthand for cuteness among players, and short clips of them are often shared outside matches in edits, streams and soundboards. Because the sound is only about a second long, it works as a quick reaction rather than a full voice line, which helps explain why creators keep reusing it for adorable or cheeky moments years after the character first appeared.