Theres no magic here people, its just describing an ass the size of a common doorway. Meaning big giant hips / booty. In reference to the width of a doorway.
I love you baby and that giant doorway ass!

Bring your Doorway ass....my way.

Holy crap that is one giant Doorway Ass
by Astral916 May 20, 2008
Get the Doorway Ass mug.