He earned the nickname "The little Jesuit of St. Omer" from wearing a brown coat outside a black one, and making pro-Catholic speeches. Started in 1780, his drinking club "The Order of St. Patrick" also included Catholic members along with liberal lawyers (who then had to be Protestant). The Club members were called "The Monks of the Screw", as they appreciated wine and corkscrews. Curran was its "Prior" and consequently named his Rathfarnham home "The Priory". The club had no link to the Order of St. Patrick established in 1783.