The English term "Wally" has come to mean, in essence, "fool;" as Prince Wally, in the episode of which he is featured, behaves foolishly, it is reasonable to draw the conclusion the meaning / intension of the word "Wally" was intentionally implicit in his name. Moreover, since Wally is a prince, we can deduce he is a supreme fool, or, rather, the "Prince of Fools."
Confidence: 100(confirmed)