The Keter label originates from the SCP Foundation, a collaborative web-based fiction project focused on secret containment procedures for anomalous objects. In the SCP lore, 'Keter' is one of the primary object classes, reserved for entities that are the most difficult to contain, often posing a significant threat to humanity. In meme culture, these labels became popular through the use of sticker-style overlays. Users apply the Keter classification to images of chaotic energy, wild animals, or unpredictable friends, humorously implying that the subject is an anomaly that cannot be easily restrained or understood by normal logic.