I'm annoyed by my brothers ocd to the point that I blow up.
Are you annoyed because he's being obsessive?
He's always in my business and arguing with me about nothing.
You should learn what is causing it and try to help him out. Maybe there is a way for you to work this out with him without blowing up at him.
He needs to stop being so OCD if he wants anyone to make him.
I understand that your brother's OCD can be frustrating, but you may be inadvertently feeding into his behaviors. If you take the time to learn more about OCD, then you can avoid triggering him in ways that will upset you both.