It’s funny because (a) it’s cute, and (b) I’ve certainly done it before in the past.
Katherine will start singing the “Wizard of Oz” song …
We hear he is a whiz of a wiz
If ever a wiz there was …
… and then segue to something like the conclusion of the “Pinky and the Brain” song …
The Wonderful Wizard of Oz, Oz, Oz, Oz,
Oz, Oz, Oz, Oz …
“What do you want to do tonight, Roquat?”
“Same thing we do every night. Try to take over Oz!”
(I can’t remember any other gnomes’ names, except Ruggeddo, and I always had the impression that Baum had forgotten the Gnome King’s name and picked a new one — it’s been a long time since I read these books!)