For a female:
Femininity or female sexuality
Mother or motherly love
Emotional support or nurturing
For a male:
Masculinity
Femininity
Strength
Macho or bravado
To see nipples in your dream, relate to infantile needs and a regression into dependency.
To dream that you are squeezing pus out of your nipples, refers to your negative feelings about relationships. You are feeling sexually inadequate.
Please see also Breasts.