Wiki - A bustle is a type of framework used to expand the fullness or support the drapery of the back of a woman's dress, occurring predominantly in the mid-to-late 19th century. Bustles were worn under the skirt in the back, just below the waist, to keep the skirt from dragging. I'm not much for words ... I like pictures. The last picture is a good bustle. Where the heck do your wheel wells go ?