Manky Kongs are long-armed orangutans found in the game Donkey Kong Country. Manky Kongs are the only Kongs in Donkey Kong Country to be an enemy. In fact, these orangutans are described as Kong reject orangutans, implying that they've been exiled from the Kong Family. These Kong reject orangutans do know how to roll out the barrel!
-Donkey Kong Wiki and DKC instruction booklet