What is meant by "thin, viscous" in the description of a woman's maniyy (vaginal discharge), and does thinness mean it is watery like water?

Thin (al-raqeeq) is that which leaves no trace after drying. For this reason, thin female semen is not rubbed off, unlike thick male semen, because rubbing is for lightening, and the thin disappears upon drying. The distinguishing characteristic of female semen is: the pleasure felt upon its emission, the subsiding of desire thereafter, and its smell resembles the smell of male semen. The characteristics of semen are three: the distinctive smell, gushing forth, and the pleasure felt upon its emission followed by the subsiding of desire. There are other characteristics such as thickness and whiteness for male semen, and thinness and yellowness for female semen, but these characteristics are not among its distinguishing features.