An impudent, boldly flirtatious, or wanton young woman.
Chiefly attested in the writings of Jonathan Swift (1667–1745), where it is used as a term of endearment or as a playful or affectionate form of address for a woman. Now only in historical contexts.
Early 18th century; earliest use found in Jonathan Swift (1667–1745), writer and dean of St Patrick's Cathedral, Dublin. In some forms from slut + -ikin, variant of -kin.