Moku Moku no Mi

The Moku Moku no Mi (Smoke Smoke Fruit in the English dub, Plume Plume Fruit in the English Manga) is a Logia-type Devil Fruit, eaten by Captain Smoker.

This fruit allows the user to transform into smoke at will, as well as control it.

"Mokumoku" means silent, and "moku" is an anagram of "kumo", which means "cloud", "moku" is also the sound billowing smoke makes.