Talking ex culo

Re Mark Liberman’s post, I don’t know of any prior examples–the nearest I can think of are C16th Dutch usages like Poortegaal for the smallest room (but speaking Portuguese isn’t, unfortunately, mean speaking crap) and Scythen/Schijten = Scythians/shitting–and Thomas Watson’s “A perjured person is the devil’s excrement” is attractive but too late. Saint Augustine doesn’t…