[isaacb]

Hah! I should probably change it to Fezzes then.

[dgallagher]

Also, there's a popular video game also named "Fez" which uses the same fez hat in it. It probably won't lead to confusion since the game isn't a file based build tool, though it'll be something you might have to indirectly compete with in search results. :)

[c4n4rd]

While Fezes, as (s)he said means faeces in Portugues, FEZ does not mean that. It actually means:

   1. Did 
   2. Made 
   3. Built

From the verb FAZER (to build, to do, to make), third person (ele/he) of 'Preterito Perfeito do indicativo'

[egeozcan]

You could change it to "fes", the original name of the hat in Turkish =)