Male co-worker

Yes, put a stop to it otherwise it will continue and likely worsen. Realize you work in a small company and it may be harder to get quick results. If you had worked at a large company it would have to be dealt with immediately otherwise the company would fear a harrassment lawsuit. You contradict yourself in saying he is a nice person, and then list what he does, doesn't sound too nice to me and nothing humorous about it. I would speak to him directly and tell him you will not tolerate it any longer. If he continues, go to your boss. Best to head off problems early on. And, if your boss can't control it, then go above that person. There are many ways to handle this, but this is the best approach IMO.

Sounds like sexual harrassment to me, you should report it to your boss, unless of course you like it. And don't go badmouthing Guns N' Roses, they're a great band.

What does GNR have to do with it?

Oooooohhhh....

"Immigrants and faggots, they make no sense to me..

they come to our country and think they'll do as they please...

like start some mini-iran, or spread some fucking disease..."

Are you gay?

I saw that too, suppose GNR not to his liking! That group is a non related to his post.

Just like to add (I've got experience in dealing with issues like this at a Fortune 500 Co.) you should document each time this person makes an offensive comment. Write down the exact comment, word for word that was said, the date it took place, the place in the building it was said. And, never retaliate with any such provocative remark or make threats. Make copies of it too and keep in a safe place, never at work. Then, if and when you take this issue to your boss or even higher, bring with you a copy of these incidents and give it to your boss. This will be your proof, and give you a strong case, sends a message you mean business. It can also help you out in a court of law if you pursue it that far. Good luck!

Bash the queer to death

cold turkey ask him if he is gay... he will "freak out" and then you tell him all the shit he has been doing to you and say that those are the reasons. so if he says he does has gay tendencies(worst case scenario) tell him you dont like those jokes, it is offensive to you. if he says he is not gay(most possible scenario) then there is a chance of him stopping the "jokes". if he doesnt, then you have already opened a window to say a second time to stop the gay acting thing. if no changes, then tell your boss.
btw, when you ask him if he is gay, do it in public and out loud...

Gotta go with Galeni on this one. Embarrass him with his own comments. Should put an end to it. Going to the boss will make you look like you can't take care of issues yourself. In any buisiness, don't show that kind of weakness.

I honestly don't believe a word of this. I think the poster is gay, and having a fantasy about an imaginary abusive co-worker.

It's called sexual harassment, you can press charges and get him fired

take him to the bathroom and give it a go!

This guy sounds like a right laugh and if you're intimidated by him you're being a coward.
The best way to resolve you're obvious fear of this man is to slap his ass and tell him you'll make his bung hole bleed.
Of course it all sounds like it now too late for you to turn the tables on him now as you soujnd like you're his bitch.

He's a funny, if somewhat irritating guy.

Get yourself a girlfriend or boyfriend (as it sounds like you may be a gay) and take it out on them instead

I'd talk to your boss, tell them what is going on and ask if it's ok if you try to handle the problem first. That way your boss is aware of the situation if the talk goes bad. Then tell the guy that the comments really bother you and if you have to -that is if he's being a jerk about it, tell him if he doesn't stop you're going to make it a big problem for him. Small companies can be difficult, just approaching him is dangerous, and sometimes if the boss handles it they can ruin the working relationship you have with the person causing the problem or flat out fire an otherwise liked and decent employee.

if you find it a major concern that threatens your working talk to the boss

You probably like it. If it really bothers you then tell him. But really I think you enjoy it.