Fay ki Boli

Fay Kee Bolee (, lit. "Fay Language") is a language game used by Urdu-speaking people in Pakistan. It can be regarded as a trivial substitution cipher and it is sometimes used by adults to converse in (perceived) privacy in the presence of children or vice versa. It is close to games found in other languages such as Farfallino alphabet (Italian), jeringonza (Spanish/Portuguese), and Pig Latin (English).
""Fay" (), Urdu language Alphabet corresponding to the sound of "F" in English, can be replaced by most other consonants to form another variety. Pay ki Boli is another more complex variation of the language game.
Rules.
The game is based on a simple substitution: adding an extra "F" before each vowel of a syllable. Insert "fay" in the middle of each syllable (usually before the vowel - splitting the syllable into two) in each word. In some monosyllabic words which would still be so obvious, "yay"" (), Urdu alphabet for "Y", iyf