Why do guys get angry when they are drunk?

Some people are just miserable to begin with. They drink away their problems then explode on others. This stuff leads to alcoholism and abuse, and also a bunch of unnecessary apologizing, usually by the person who gets drunk and makes an a$$ of themself. People who tend to be rather emotional usually get like this, I've noticed.

Hmmm not all guys get angry when drunk... and girls can get angry when drunk too.
I have a very good girl friend that I hate getting drunk with because she always swears a lot when she's drunk. Whereas I'm, not angry at all when I drink, I become more enthusiastic but not angry. I do know of many guys who get very aggressive and such when they drink, but I also know a few guys who are the opposite - alcohol just makes them more social but 0 aggressiveness and violence. Alcohol just reveals your true self - if you're a very stressed person and have a lot of anger inside, it can come out when you drink. If you're not, then drinking won't make you violent.

It is because alcohol is a drug. It is a depressant. It inhibits executive functioning, which for those who are low executive functioning individuals (who can't control their emotions or have a low tolerance for frustration), it causes aggression. Also men have higher level of testosterone, which means we are more anger-prone to begin with.

We lose our judgment.

Sometimes anger that we have while sober comes out while we are drunk, it's just exaggerated because of the alcohol.