Grumph was a Nome who wandered into Oz with his partner, Umph. He was distinguished from his partner by his red pantaloons.

The two of them tried to steal Jenny Jump's Turn-style, but when they tried to escape with it through the chimney, they were trapped there by a two-headed dragonette and Sir Hokus. Once they were removed, Number Nine's family threw eggs at them to knock them out, and then threw them into the river, with instructions for the river to carry them where they belong. (The Wonder City of Oz)

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