Donut's brother, cited by Carl as evidence her family's names are not as profound as she claims.
When Donut delivered her lecture on how names are profound, honor the past, and determine the path a creature takes in life, Carl deflated it by noting she has a brother named Skittles and a grandmother named Princess Chonkalot.
Donut defended Princess Chonkalot's seventy best-in-show record but offered nothing in Skittles's defense, moving instead to attack Carl for having earlier suggested naming the tummy acher Cousin Oliver.
Donut's littermate brother, a rhetorical casualty of the naming debate.