Believe it or not, "Shiver Me Timbers" is a true nautical phrase describing the awe and shock from how a boat slamming down in high seas could actually shake the timbers lining the bottom of the ship! It is somewhat synonymous with phrase like "Well blow me down," and has some application to the shock of a brain freeze! In this case, it is a reference to the TCBY Shiver! TCBY, which once stood for "This Can't Be Yogurt" until they were sued by another yogurt company and had to change it to "The Country's Best Yogurt", offers their Shiver dessert with a base of yogurt with your favorite toppings sprinkled in! I went with cookie dough! As you try to chew the partially frozen pieces of cookie dough, you have no choice but to let the frozen yogurt just sit there and do its job, and thus comes the Brain Freeze! Argh Matey! Shivered all me timbers!