I have heard the term. But I could never make any sense about womens clothing, so I don't really know what they are.
Lol. Most of the underskirting that I am familiar with was reaching under the skirt. Finding panty hose was the worst. There is no way to get over under or around those. They were like nylon chastity belts/stockings. Must have been invented by a woman. No fellow man would ever have made anything which made it that hard to have sex.