A complete idiot who is stupid and despised by everybody. Their kind are discriminated due to their unacceptable behaviours. Ones that you would love to hit when you see them.
Timothy is such a dickhead, although he doesn't have a dick.
Timothy is such a pervert, he is always trying to touch girls, he is such a dickhead.
Timothy always do nothing and pretends he has done everything, he is such a dickhead.
Timothy always think he is the director of the company although he is just an insignificant little idiot, he is such a dickhead.