The story
From backrooms. Coined by an anonymous poster on the 4chan /x/ board on May 12th, 2019 (see quotation below).
Etymology from Wiktionary, CC BY-SA 4.0.
backrooms
Today it means: A fictional environment, originating from an online urban legend and creepypasta, consisting of a seemingly endless maze of empty hallways, often described as being inhabited by monsters, or having multiple levels or floors. Full definition →