A rude or inconsiderate person who stands directly in front of the door of a bus, subway or commuter train even though there might be plenty of room or even empty seatselsewhere in the vehicle.
When you run, ride, slide, skate or bike close to a car, coming from the rear to the front of the car, and the driver/passenger of the car opens the car door and you slam right into it.
Guy 1: HEY! WATCH OUT OR YOU'LL GET...
*Guy 2 slams into the car door*
Guy 1: Door'd...
The door guy is a yellow haired mammal with a philosophy on life that fits onto an arm tattoo. You will generally find one outside a bar, asking for your ID.
Ex: person 1: that's Tim *points*...the door guy. Person 2: *gasp*. It exists? I thought they were only in fairy tales. Person1: nah, they are as real as unicorns. And don't you forget it! *puts on sunglasses and walks off into sunset*
The kind of cake that gets smashed all over your shirt after a co-worker opens the door too quickly from the other side. Generally happens when cake is served due to office birthdays.