I have nothing to add, Nancy, but thanks for the new words. Never heard of a breechcloth nor of a butt flap. Have heard of a loincloth, of course, as probably everybody has. Breeches, yes; breechcloth, no. And definitely not breechclout! Breechclout sounds like very fancy threads meant to impress! And I suppose the breechclout could!

All in the spirit of increasing vocabularly,
WW