This dream may symbolize a deep-seated desire to give in to darker impulses and join a group that goes against societal norms. The zombies represent a sense of being disconnected from humanity and the primal urge to consume and destroy. The fact that they are eating your high school principal, a figure of authority and discipline, may suggest a rebellion against authority and a desire to break free from rules and restrictions. By joining the zombies in consuming him, you are embracing this rebellious nature and indulging in forbidden desires. The act of kissing his chest may symbolize a twisted form of admiration or even a desire for control and dominance. This dream may be a reflection of repressed feelings and urges that you may need to address in your waking life. It could also be a warning to not give in to destructive impulses and to find healthier ways to express your desires.