What is the difference between "angry" and "mad"?
Being "mad" and being "angry" can informally be used to mean the same thing. However, the formal use of "angry" is to be upset with someone, while the formal use of "mad" is to be mentally ill or crazy. In the case of this clip the word "mad" is being used informally to mean "angry". Ex: Are you still mad about that? Ex: Are you still angry about that?