The term bullying refers to a persistent behavioural pattern of hurting or humiliating others, either through physical abuse, verbal abuse or social manipulation. The bully will often have an advantage over a victim (e.g. greater strength or size or a position of authority), and will often have a more favorable attitude toward aggression. Victims of bullying can be lacking in assertiveness skills, and not know how to defend themselves, or have the courage to do so.

See related lecture: Bullying: Fascinating Features and Intervention, Alan Kazdin