Toro Toro no Mi

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

Strengths and Weaknesses
Interestingly, this Devil Fruit doesn't seem to be very powerful, despite its status as a Logia. Unlike all other Logia shown, the Toro Toro no Mi doesn't seem to allow its user to generate an unlimited supply of its respective element, as Honey Queen had to reabsorb a portion of the liquid that she used for a splash attack. Nami easily captured and sealed the user in a bottle, who did not seem to be able to escape. The bottle was however somewhat compact meaning there is no space to move nor transform back, and since she is liquid it means that she cannot increase her mass to get out. Nami also properly sealed the bottle with a bottle cap and taped it after that, meaning she was stuck in it.

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 is inferior for a Logia-class, 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

 * Honey Queen is the only known female Logia-user.