It's even worse than you thought.  The information I've found lists 110 Calories and 28 grams sugar per 8 ounces of slush (called a Freezoni).  That means each 48-ounce "serving" clocks in at 660 calories with 168 grams of sugar, for a total of 1980 Calories and a ridiculous 504 grams of sugar for this pig's three-a-day habit.