Flobberworm

The Flobberworm is a ten-inch, toothless pale purple worm which eats vegetation, especially lettuce and cabbage. The mucus it exudes is used to thicken potions. Both ends of the Flobberworm are identical, and it prefers to live in damp ditches.

Contrary to the malicious claims of Draco Malfoy and his gang, which were aimed to attack the character of Hagrid and his quality as a professor, Flobberworms do not have teeth and do not bite.

History
Rubeus Hagrid, after losing his nerve during Hippogriff debacle in his Care of Magical Creatures lessons during the 1993-1994 school year school year, he had his third year students raise flobberworms for a term. The exercise was completely pointless, as they prefer to be left alone and to do nothing. They did't need too much care, although they seemed unable to control how much food they needed. They will die if overfed.

Behind the Scenes
In the film adaptation of Harry Potter and the Prisoner of Azkaban, Peter Pettigrew offers to have himself turned into a Flobberworm while begging Sirius and Lupin not to hand him over to the Dementors (ironic, as his nickname is Wormtail).

Appearances

 * Harry Potter and the Prisoner of Azkaban
 * Fantastic Beasts and Where to Find Them
 * Harry Potter and the Chamber of Secrets (video game)

Uses
It is used as an ingreident to the Wiggenweld potion, which will give stamina to the player.
 * ''Harry Potter and the Chamber of Secrets PC game