"Plin plin plon" is the fan nickname for the piano motif from Gwyn, Lord of Cinder, the final boss theme in Dark Souls, released in 2011. Composed by Motoi Sakuraba, the piece became one of the most recognized sounds in Souls memes because its quiet piano contrasts with the fight's importance. Fans began quoting the melody by text, and the phrase spread across gaming videos, reaction edits and boss joke posts as shorthand for sorrow, legacy and inevitable defeat.