A dream that you abuse someone else can mean that you are feeling frustrated or angry and you are releasing your feelings of anger and frustration in your dream.
If you are a victim of abuse in your dream, you could be feeling vulnerable or you could feel that you are being used unfairly.
Sexual abuse in a dream is often a symbol of dominance.
Abusing someone sexually in a dream can mean that you desire more power over others, while being abused can mean that you feel someone else has too much control over you.
If you have been a victim of abuse in your waking life, you may relive this abuse in your dream. This can be a sign of post traumatic stress disorder.