A b0ner is an erection in a male's penis. Contrary to its name, a guy doesn't have any bones in his penis and he doesn't get a bone in it when he gets an erection. The erection is caused by blood filling two main tubes that run up either side of the penis, causing the penis tissue to expand and become stiff. A muscular valve at the base of the penis closes off after the blood is pumped in, trapping the blood in the erect penis. Males usually get an erection when they are aroused by sexual thoughts but males also get natural erections during the night whilst they are dreaming.

A hickey is a red mark on the skin caused by someone passionately kissing, sucking and even biting on another person's skin in a moment of passion. The sucking/biting actually breaks some of the very small blood vessels near the skin surface, causing a small amount of bleeding under the skin. That bleeding is basically the same as a bruise. A person might let another person do that to them if they feel very attracted to them and they were aroused by the passionate kissing. Unlike a bruise, the hickey forms slowly over a few minutes, so it is not usually painful. The hickey will disappear over the next few days to a week as the skin heals, just like a bruise. In the meantime, some people enjoy wearing the hickey as a "badge of honour" for their sexual abilities.