Seeing a ferret in the dream signifies your inclination to believe that people are motivated purely by self-interest. Dreaming about ferret also is a symbol for mistrust and disbelief of others. The dream may also be a pun on searching of something.
Dream dictionary: Ferret dream meanings
To dream about the ferret is interpreted as the playful things in your life. It shows how smart and funny you are. Consider that these qualities could be applied not only to you, but to certain person in your waking life.
Admiration for some woman who is not good enough.