Can you explain 'se male w' please? se male w si moin pa jwen ou la...

This expression is a warning or cautionary advice
We usually say "se malè w", "malè a ou" or just "malè w"

M ap fè yon sòti pou yon ti moman, se malè w si w kite moun antre nan kay la.
I'm going out for a little while, don't you let anyone in the house.

Haitian Creole ↔ English Reference, Look up Haitian Creole and English Words