Could be the phrase is: but with cipher.
klmat → jklzs? no (k→j, l→k, m→l, a→z, t→s) → jklzs — not obvious. klmat-aghnyh-sdam-yabw-aday
Given the time, the most likely simple explanation is but with possible misspelling or anagram. "klmat" might be "talking" without the 'in'? No. Actually, "klmat" reversed "tamlk" — if you add 'i' and 'g' → "talking"? No. Could be the phrase is: but with cipher
The string: klmat-aghnyh-sdam-yabw-aday
Given the playful nature, I'll guess it's a after removing hyphens: klmataghnyhsdamyabwaday reversed = yadawbaymadsyhnyghatamlk — no. Given the time, the most likely simple explanation
But "yabw" reversed "wbay" — maybe "wb" as in "web" + "ay" → "webay"? Unlikely.
Could be a keyboard shift (each letter typed with hands shifted one key on QWERTY)? Example: k → i (shift left), but then l → k, m → n, a → s, t → r → "iknsr" not obvious.