If a manager is turned off by "motherfucking website" do you think you will enjoy working for that person/company?

If you arrange your portfolio site as mostly completely professional and then have a "beer coding fun projects" category it should just show you have a sense of humor and like tech enough to do stuff outside of work. If your "beer coding" section is going to be the majority of your site then maybe you should have a separate site for that content?

Usually hiring managers won't check out blogs or github until you have made a shortlist of some sort. The resumes left are people that match the criteria, they are interested enough to schedule an interview. So it would have to be really offensive or something demonstrating poor character to eliminate you at that point.