Nirnroot is a rare glowing herb from Bethesda's The Elder Scrolls series, first appearing as a collectible plant in Oblivion and returning in Skyrim, where players learned to listen for its distinctive chime while exploring caves and riverbanks. Because the plant is easy to miss visually but unmistakable by ear, the sound became a shared shorthand among players for a hidden discovery. Streamers and editors later reused the short clip outside gameplay, and it remains popular in fantasy edits, reaction videos and Skyrim nostalgia content.