Thmyl Fylm Alans Walnms Rb Syd Here

Given the oddness, I suspect it's a simple :

"thmyl" → "lymht" "fylm" → "mlyf" "alans" → "snala" "walnms" → "smnlaw" "rb" → "br" "syd" → "dys" thmyl fylm alans walnms rb syd

Given the lack of clear decryption, but the phrase looks like it might be a playful scramble of a common phrase. One possibility: it's an accidental keyboard shift? Or simply nonsense. Given the oddness, I suspect it's a simple

Alternatively, perhaps it's a Caesar cipher or Atbash. Trying Atbash (A↔Z, B↔Y, etc.): Given the oddness

Given the difficulty, I'll assume it's a fun riddle and just produce a plausible humorous "decoded" text as if it were English with reversed words and typos: