Splendid; fine. A make-believe word used only in jest.
A splendiferous white horse, with long tail and flowing mane.--S. Slick in England, ch. 13.
An itinerant gospeller was holding forth to a Kentuckian audience, on the kingdom of Heaven:
"Heaven, my beloved hearers," said he, "is a glorious, a beautiful, a splendiferous, an angeliferous place. Eye hath not seen, ear hath not heard, it has not entered into the imagination of any cracker in these here diggins what carrying on the just made perfect have up thar.'