English edit

 
Design for a circle skirt, showing the fabric folded twice.

Etymology edit

Because the garment is manufactured by cutting a central circle out of a larger, circular piece of fabric.

Noun edit

circle skirt (plural circle skirts)

  1. A skirt cut in sections to make one or more circles with a hole for the waist, so the skirt is very full but hangs smoothly from the waist without darts, pleats, or gathers.