a very annoying, irrational, rude person...a poor excuse for a human being

(1) One who is both an asshole and a dick, and who thereby acquires and exhibits the worst qualities of both.

(2) A detestably nasty person.

(3) The urethral opening.

The urethra. The hole at the end of the dick.

The place on underwear in which you can manuvre your penis to be outside of the underwear whilst the body is still in

worse than asshole and worse than being a dick,

One who is such a humongous prick that no other word can adequately describe them.

a person who is worst than a dick. They are a dickhole. These people purposely ruin your day.