What joke can make girlfriend laugh till her stomach hurts?

It is said that one day a woman was riding a bus and suddenly shouted hooligans. Maybe the young man behind her is dishonest. The young man looked innocent, but the girl insisted. The two of them called "you rogue" and "you rogue" ... only heard this woman say, "you rogue, you never forgot to look back at your mother when you were born." The whole car was shocked at once. This is the most vicious language in the world. I saw the young man say, "You are the most rogue."