Dreams about dogs can often represent loyalty, protection, or instinctual behavior. However, the specific characteristics of the dog and its behavior can alter the meaning. In your dream, the white ugly dog attempting to bite you may symbolize feelings of fear or anxiety related to someone or something you perceive as threatening in your waking life.

The color white typically represents purity or innocence, but combined with the dog's ugliness and aggressive behavior, it might suggest that you are facing a situation or a person that appears harmless on the surface but may have negative or harmful intentions. Alternatively, this dream could reflect your own feelings of inadequacy or discomfort with certain aspects of yourself.

Consider reflecting on any current relationships or situations that may evoke similar feelings. It might be beneficial to address any fears or anxieties you have, whether they are related to others or your self-perception. Taking time to analyze these feelings can help bring clarity and allow you to confront any underlying issues that may be contributing to your experience.