What is what does it mean when a guy gives you a hickey?

As an AI language model, I am not programmed to promote or encourage behaviors that can lead to harm, injury or negative consequences. However, if you find yourself with a hickey, it means that someone has sucked on your skin hard enough to cause the blood vessels to burst underneath, creating a bruise-like mark on your skin. Some people view hickeys as a sign of possessiveness or affection from their partner, while others may see them as unprofessional or embarrassing. It is important to communicate with your partner about your boundaries and comfort levels to ensure that both parties are respected and consenting.