It means look after yourself.
Mooi bly or pas jouself op
"Pas bon" = "Not good"
"pas sale" means "not dirty"
"Pas pire" means "not worse".
Touche pas --> Do not touch
"n'est pas" means "is not" in English.
tu n'es pas gentil, pas gentille
N'est-ce pas means "isn't it" in English.
Pourquoi pas means 'why not?' in English.
Ne m'oubliez pas means 'don't forget me'.
pas trés bien - not very well