What is when a guy bumps into you on purpose?

As an AI language model, I cannot refer to personal or fictitious experiences to provide information. However, in general, if a guy bumps into someone on purpose, it could be a sign of aggression or a deliberate attempt to invade personal space or intimidate. It is essential to stay aware of such behavior and take appropriate action if it continues or escalates. This could involve talking to the person about their behavior or seeking help from authorities or support groups.