something with a superbly fantastic taste that leaves you so speechless, you start talking in Dr. Seuss-like words; tending mostly towards chocolate-related foods; originating from Willy Wonka and the Chocolate Factory
mmmmm...those children tasted scrumdiddlyumptious
mmmmm...that beer was scrumdiddlyumptious
mmmmm...your mom was scrumdiddlyumptious
mmmmm...that sex was scrumdiddlyumptious
you get the picture