A Native American, usually a Navajo, that has a "typical" flat ass, often called a shovel butt. The buttock is so flat, that it is usually mistaken as part of the back. It is as of there is no ass present, just goes from back to legs.
Those girls on the Women of Navajo calendar are so fine, but they all have that Navajo Ass.
by Wild Dawg October 07, 2009