"Kopi" is the Japanese way to pronounce the word "copy".
Strengths and Weaknesses
The main power of this fruit is to copy other people's abilities by touching the one he needs to copy. It seems that the user needs touch the person he needs to copy thus giving it a big weakness. The user also needs a great concentration in using this ability as seen when Chameleone stops using his powers whenever he sneezes. Otherwise, the user is affected by the standard Devil Fruit weaknesses.
Chameleone uses his power to steal others powers for his own sake. Some of the Devil Fruit users he has copied are Luffy, Smoker, Ace and Kizaru.
This fruit is similar to Mane Mane no Mi, as both can copy or imitate the appearance of someone else. However, the Kopi Kopi allows the user to mimic abilities as well as appearance.