refers to bodily parts that make (or matter most in) a woman physically, i.e. pussy and boobs, but often also includes ass (especially a nice, round juicy one).
Sing. womanthing (refers to only one of aforementioned parts)
"Have you seen Mindy Vega? Damn, now that's one spicy lady who knows how to flaunt her lovely womanthings".
"Tori's pussy is one fine womanthing".
Most (if not all) straight men can't resist the power of a well-made set of womanthings.