Pink dog?

Pink dog? What is going on in this poem. I have absolutely no clue what is taking place, or even the meaning of this poem. In my small group, we came up with many different possiblities, but we are not certain on what was really happening. Our understanding was that it is a poem that is critisizing society. It talks of how "noone with ever see a dog ini mascara this time of year." We took this as, people put masks on at the carnival so they can hide their true identity. People do this in society so that they can be someone else for the evening. They feel that if they are noticed for who they really are, they will not be accepted. I'm just really confused as to why the author chose the title "Pink dog" and what the dog has anything to do with the poem.