Often refers to any young, attractive woman, but also used to imply sexual availability (as in "bishōjo games").
Case in point, men may interpret a style of dress or a woman accepting a drink at his apartment as indicators of sexual availability.
The person flirting will send out signals of sexual availability to another, and expects to see the interest returned in order to continue flirting.
Their femaleness (sexual availability) is never in doubt.
Lots of comment on here relating sexual availability to abused in early childhood.
It may, for example, be a non-physical gesture that indicates sexual availability.
Or they might use cosmetics for temporary alterations to announce their attractiveness, mood or sexual availability.
Cigarettes can also signal sexual availability and freedom from constraint.
Oh, then there's also the assumption of sexual availability.
Thus the freedom of women within Etruscan society could have been misunderstood as implying their sexual availability.