The physical act of pushing a person's head into the toilet and pulling the chain (or pressing the button, for all you modern cistern types).
Suitable initiation/punishment for freshmen, especially new attendees of upper crust boarding schools (making the "Royal" especially apropos).
So, whatever happened to that young pimply Venables boy we saw around the traps?
I gave him the Royal flush during recess.
Very good, Hawthorne.