The numerous and detailed operations at work in the “Inversion”/“Backward” “secret language” (“SL”) of El-Jadida, Morocco, known as “ş-şāwġ”, are scrutinized in this investigation. The manipulating changes affecting individual sounds, syllables, words and structures (of all types, categories and lengths) will be studied, with a consideration of the rich and interesting phonetic, phonological, morphological, syntactic, semantic and discursive effects of the “SLs” on the MA variety of El-Jadida, generally and most commonly referred to, in the relevant literature, as the “Aroubi” (villager)/“Doukkali” variety.