Plin Plin Plon refers to the iconic three-note piano melody that opens the second phase of the Soul of Cinder boss fight in Dark Souls III, which serves as a heartbreaking callback to Gwyn, Lord of Cinder's theme from the original game. The phrase became a viral shorthand within the FromSoftware community to represent sudden, overwhelming emotional trauma or nostalgia. While the music is hauntingly beautiful, for players it signals a shift from an intense battle to a melancholic realization regarding the series' lore and the inevitable fading of the fire. In meme culture, it is frequently used to show characters reacting with tears or a Thousand-Yard Stare upon hearing any simple piano sequence, symbolizing the deep, lasting impact of the Soulsborne franchise on its fans.