Phun is? - noogen/phuncms GitHub Wiki

Phun is because it's fun for an MVC ASP.NET developer to use.

A friend asked me why not just called it Simple CMS, Tiny CMS or something similar. His reason is that people might vote against the name in a Business or Corporate environment. Well, Phun is also short for Phundamental. I think that's reason enough.

Phun is because it a good SEO name.