Green’s Dictionary of Slang

light skirt(s) n.

a prostitute; also as adj.

1597		J. Hall Virgidemiarum (1599) Bk I 17: Like as she were some light-skirts of the rest, In mightiest ink-hornismes he can thither wrest.
1606		Return from Parnassus Pt II I ii: Hath not Shore’s wife, although a light-skirts she, Giv’n him a chaste, long-lasting memory?
1615		Crooke Microcosmographia V xi: The excuse of a light-skirts ... to saue her honesty.
1637		N. Whiting Albino and Bellama 61: Many trulls, like Menelaus wife, And she such light-skirt things for chaste ones sels, With whom dissembling and deceits are rife.
1659		Greene & Lodge Lady Alimony II vi: I must confess Tinder that light-skirt with impetuous heat Sometimes pursu’d me.
1678		J. Ray Proverbs (2nd edn) 90: A Whore [...] A light-skirts.
1696		Motteux (trans.) Pantagruelian Prognostications (1927) II 693: Those whom Venus is said to rule, as punks, jilts, [...] trulls, light skirts.
1834		H. Taylor Philip van Artevelde Pt II iii 3: Oh, she’s a light skirts! yea, and at this present A little, as you see, concern’d with liquor [F&H].

In derivatives

light skirtedness (n.)

sexual licence.

1607

R. Carew (trans.) Estienne’s World of Wonders 101: If it were not light skirtedness and leuitie that caused her to companie with Tarquinius, she is vniustly punished.