What kind of dessert is a whim wham?

"Whim Wham" is not a recognized dessert. It's likely a playful or made-up term.

If you're trying to remember a specific dessert, could you provide more context? Perhaps:

* What flavors or ingredients do you remember?

* Where did you hear the term?

* What was the occasion it was served at?

With more information, we might be able to figure out what dessert you're thinking of.