Is reporting my male classmate to the dean a good idea if he's super mean.
Why would you report him?
Because he is such a mean person. He always begins fights and accuses everyone else of his own mistakes.
If I were you in your position, I would also try to get someone of power to discipline your classmate. However, there may be an underlying issue with your classmate at home, where he may be being abused and where he may feel like taking it out on his classmates is a coping mechanism. So while it is okay for you to report him, I would also try to talk with him to see if everything is fine with him at home.
That is a possibility, but I'm just going to report him to the dean, he deserves it.
You're doing the right thing by reporting him. That type of bullying behavior is not something we can tolerate.