Sentence:  Your modern <WSD>"Rantipole</WSD>", then, is of high Birth, or considerable Fortune, or great Beauty, either of which may entitle her to do that which others are ashamed of, who have not those superb Qualifications, and enable her to reverse the true Estimation of Things, and value herself upon being good for nothing./ A young <WSD>"Rantipole</WSD>", as soon as let out of the Cage, most commonly enters the Order, and opens her first Scene of Life with the Choice of a Gallant, whom she reizes egregiously for a Number of Years, and then marries and torments him without Mercy. 
Meaning of the word marked with <WSD> tags:  A rakish person.