it's english but every word starts with a j.
jit's jenglish jut jevery jord jarts jith ja j.
if it started with a vowel, append a j. if it started with a consonant, replace that consonant. if it started with a consonant cluster, replace the whole thing with j unless it's a cluster where the second element is an r, in which case replace only the first element with a j.
basically, it's english but made entirely out of denim. jeanglish.