Anger
The fallacy of anger is when you use anger or outrage to get people on your side instead of giving a proper reason. Being angry doesn't show that a claim is true or that a policy is right. Outrage can be appropriate, but it's not an argument. The fallacy is to substitute emotion for reasoning. The remedy is to ask: what's the argument, apart from the anger?
Examples
How dare they suggest this! It's an outrage!
I'm furious, so I must be right.
If you're not angry, you're not paying attention.
The very idea is offensive—that's all we need to know.
How could anyone support that?