1. Common noun:
Older women who are morbidly obese, have square faces and large, square bodies.
They frequently ambulate at a very slow pace and gather in large clusters, obstructing the passage of faster, younger, healthier members of the same species who are vying for deliverance from behind these herds of buffalo.
I was late for the Code Blue in the hospital because the damn box-whores were herding around the See's Chocolates at the blood drive.