A person who is a cross between a dick and a douche. An ass-hole who is also a creep.
Guy: "Hey, ladies. If you play your cards right I'll let you give me a Brazlilian wax."
Girl 1: "Dude, that's gross."
Guy: "Whatever. I wasn't talking to you anyway. I was talking to your hot friend."
Girl 2: "What a dickoosh!"