Pelvic Curtain
A dangling, usually rectangular, component of some garments that hangs in front of and/or behind the crotch, exposing the thighs. A possible result of high double-side slits.
Pelvic curtain is associated especially strongly with the loincloth and china dress.
Pelvic Curtain
When a large female is on top of a male during intercourse covering the males pelvic region from view
" i took that huge thing home last night. she jumped on top and before I knew it my lower region was engulfed by her pelvic curtain. It was not a pretty sight"