NG or (Ùغ) means "No Goal" a word used by retarted moroccan teens and adult kids to prevent others from scoring against them.
Retard1: hey, who are you?
Retard2: the person who fucked you, haha lol 1-0 you didn't say ng
Retard1: my friend won't accept that.
Retard2: your friend who? ng ng