To be repeatedly struck in the balls with a heavy object, especially as a means of torture. Named for the movie Casino Royale in which Le Chiffre tries this method on 007.
See also: Dutch Scratching, Daniel Craiging.
Bond laughed as Le Chiffre Casino-Royaled him one last time. "AH! AH! Yes, yes, YES!" Bond's voice faded from an agonized yelp into tears of laughter. "Now the whole world's gonna know that you died scratching my balls!"