The lamp craving comes from the moth meme that spread online in 2018, after a close-up photo of a moth at a window was captioned with jokes about its love for lamps. Variations rewrote the moth's thoughts in broken, eager phrasing, including I want sum lamp, often typed with an umlaut for extra silliness. The joke spread across Reddit, Twitter and meme pages as an image and later as audio edits. It remains shorthand for wanting one useless, glowing thing far too much.