Other than the Jada part, the dude's name is Jason which could also be taken as Jay. 'Muah' being the word to decribe teh sound of a kiss.
The 'D'? Picky aren't you? A lot shit is sacrificed in raps for the sake of rhyme or flow, I'm guessign this is one of them.
If not, Warren G has appeared illiterate on song(s), maybe it's a running theme in rap music.