Jan 10, · One of the best ways to identify sibling bullying is to know the three components of bullying. These include a power imbalance, intentional actions, and repetitive behaviors. In other words, when siblings regularly engage in name-calling, humiliation, intimidation, physical abuse, and other forms of bullying, this is sibling bullying. Jul 31, · While some parents see bullying among their children as a normal form of sibling rivalry, few people realize that, in many families, it can continue well into adulthood. So, what is it .