- "Here's my plan: Find a Flobberworm, hurt its feelings, make it cry, collect the mucus."
- —A Hufflepuff student tells Harry Potter his idea for procuring Flobberworm mucus.
Flobberworm mucus, also known as Flobberworm mucous and Flobber Mucus, is a sticky and green substance that is extracted from the Flobberworm.
This mucus is used to thicken potions and it is one of the vital ingredients to a Wiggenweld Potion. This mucus is spread all over the roof beams on the Hogwarts attic.
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