Demaske w sou mwen (translate please)

Not such a nice thing to say to someone.

Demaske → unmask

Demaske w sou mwen.
literally: Unmask yourself from me.
meaning: Get out of my face.

Mwen bezwen demaske li sou mwen.
literally:  I need to unmask him/her from me.
meaning: I need to get rid of him/her.

Demaske w la!
literally: Unmask yourself from here!
meaning:  Get lost!