From Ebay, a knockout of a dress. A little on the small side (25" waist), but in great condition and a truly marvelous print.

A "wiggle" dress, for those of you unfamiliar with this locution, is a dress with a tight, tapered skirt that doesn't allow for normal-sized steps. So when you wear it, you wiggle. (At least, that's my folk etymology for it, but it makes sense …) Think Marilyn Monroe and the "sexy secretary" trope. Searching for "wiggle dress" on Ebay will get you many, many excellent examples.