Cat'n Crunch
n. A kitty litter box full of gravel-crunchy shit lumps and dry puddles of piss, an irresistible crunchfest for the canine species.
My dog Seabiscuit was crazy for Cat'n Crunch, no matter what I did to keep him away from the litterbox. His breath stank of catshit, even after he washed it down drinking from the toilet.