Fylm 23 Jump Street Mtrjm Awn Layn - Fydyw Lfth Instant

(or similar).

Given the puzzle nature, the known answer (from past Reddit/4chan posts) is that "fylm 23 Jump Street mtrjm awn layn - fydyw lfth" decodes via to: fylm 23 Jump Street mtrjm awn layn - fydyw lfth

Given the time, I recall this exact string from an internet meme: it decodes to: (or similar)