I grew up with the riddle song! Well, sort of -- we never sang it that often, because we weren't that good at coming up with spontaneous riddles, but my mom grew up on it, so I was aware of it. Partem portem perry dissentem, perry merry dictum, domini is the chorus I learned.

I believe you that the ending of The Coming of Pout is a soggy faceplant, but the book up until then sounds gloriously weird and cool!