Dickheads are best described as insensitive and rude to the people he surrounds himself with. He may engage in stupid behavior and probably will take a while to mature. He may be all "jokes" but he fails to empathize and to be serious when the situation calls for it.
Stay away from dickheads; they are toxic

A dick on a head

A man who is a jerk or asshole that everyone hates

Another word to call your boyfriend like bae , baby , daddy

Someone who is a complete and utter waste of time and an idiot just an all round cunt