Placket

n.	1.	A petticoat, esp. an under petticoat; hence, a cant term for a woman.
	2.	The opening or slit left in a petticoat or skirt for convenience in putting it on; - called also placket hole.
	3.	A woman's pocket.

Noun

1.

placket - a piece of cloth sewn under an opening

air hole, armhole, blowhole, bullet-hole, bunghole, cringle, deadeye, eye, eyelet, gasket, grommet, guide, keyhole, knothole, loop, loophole, manhole, mousehole, peephole, pigeonhole, pinhole, placket hole, porthole, punch-hole, spiracle, tap, vent, venthole