The lulokkldskj sound circulates online under a keyboard smash style name, which suggests it was shared as a joke file rather than released as part of a known film, song, or show. Short clips like this spread through soundboards and edit packs because they are easy to drop into any timeline and instantly understood as randomness. Its appeal has less to do with a source fans recognise and more to do with timing, repetition in memes, and the way a meaningless sound can become a shared in joke.