Tax studly swaggering

In Gulliver’s Travels, we see this, as a contrast to Vice taxes:  Tax envy-producing qualities, as reported and assessed by the taxpayer himself.   For example, the “highest Tax was upon Men who are the greatest Favourites of the other Sex, and the Assessments, according to the Number and Nature of the Favours they have received; for which, they are allowed to be their own Vouchers.” Call it the “Swaggering Stud” tax.