Generally, ما or مbefore the word +ش at the end of it is use to make negative in Egyptian dialect. For example: ما كلتش Or مكلتش =didn't eat The word مالك؟ means something like "what happened to you?". It's used when you see someone sad. And مالكش means "there's no......for you". But مالكش دعوة means "that's none of your business". Hope this helps.