Toro Toro no Mi

The Toro Toro no Mi, is a movie only Logia-class Devil Fruit, that gives its user the ability to turn into a liquid-like substance. "Torotoro" means simmering liquid and the substance the user turns into isn't water. It was eaten by Honey Queen.

Strengths and Weaknesses
The Toro Toro no Mi allows its user to transform in an unknown liquid, enabling its user to flow through small spaces and attack with liquid blasts, as well as let physical attacks bypass the liquid body. Unlike other Logia types, the Toro Toro no Mi can't seem to generate liquid separate from the user's body, as the user's limbs reformed from the liquid used for long range attacks.

The user also has no effective physical strength when in liquid form, and cannot transform back into their normal form if they are in a space that their normal body can't fit in. Because of these flaws, Nami easily captured and sealed Honey Queen in a bottle while she was in her liquid form, who was unable to escape.

Also, even though Devil Fruits transform the user's clothes along with their body, she always leaves her clothes behind while she transforming into liquid. Other than that, the user is also affected by the standard Devil Fruit weaknesses.

Usage
Even though this fruit's power seems to be inferior to other Logia's, Honey Queen can still use her power as a quick attack, as seen when she kidnapped Sanji. She launched a wave of her liquid to wash against the Straw Hat Pirates, causing Sanji to fall off the air balloon. She also transforms into the liquid for quick movements, and to move through a pipeline.

Trivia

 * This is the only known Logia fruit that belongs to a female character in the serie(Non-Canon).