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1) A baby monkey found off the coast of Africa.
2) A word commonly used by charlatans during a poorly executed game of scrabble as a final attempt to gain a few measly points.

brother: "Father shoot an umpkey today while hunting"
sister: "oh dear..."

ghetto scrabble player #1: "u-m-p-k-e-y...umpkey?!?, umpkey ain't no word."
ghetto scrabble player #2: "bitch yeah it is, look it up at"
by Tercel September 25, 2006
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