“M pral djayi sou ou” seems to mean “I’m going to flip out on you” (to be angry or furious). I’m not sure what the context is.
It also translates to shake, to have the shakes, to go into a trembling fit.Egzanp:
Fanm nan t’ap kriye nan antèman pitit li a. Li t’ap djayi atè a. Se dis gason ki t’oblije kenbe l anvan l te vin resi kalme.
“Djayi” can also mean “to dance”.
Haitian Creole ↔ English Reference, Look up Haitian Creole and English Words