Read my comment again. It doesn’t need to be his boss. Work place harassment is workplace harassment. The reason I mention the boss is because if you bring it up to him, he’ll probably tell you to shut the fuck up (that’s illegal). If you tell him you’re reporting the company to the Department of Labour or something, he’ll threaten to fire you or something (also illegal). Push the right buttons (without instigating), he might even hit you.
Even if none of that happens, you can still get money out of the company for being harassed by your co-worker.