Toro Toro no Mi

The Toro Toro no Mi, known commonly as the Toro Toro Fruit, is an anime only Devil Fruit, that gives it's 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. 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.

Trivia

 * Though Devil Fruits usually transform a person's clothes in accordance to its powers, this one seems to differ, as Honey Queen always leaves her clothes behind while transforming. It could be that she was trying to be sexy and developed a habit of removing her clothes but she doesn't even realize it.
 * This Devil Fruit seems to be inferior for a Logia-class, as it seems to be incapable of high-level destruction, and it renders the user to be vulnerable to capture.
 * This Devil Fruit, along with its fellow non-canonical Ame Ame no Mi, are the only known Logia-class that controls liquid phase elements.