Oah
Oah is a super rude way to call Chinese people. It means 'how are you?' but it sounds like you're saying 'how are you' while also being a total jerk.
Oah! You just called my cousin a rude name and now she's crying!
Oah! You said that to my neighbor and he started a fight in the grocery store!
Oah! You used it in class and now the teacher is mad!