"Not now thanks, I'm pickling some slugs."
Dishevelled Wizard.[src]

Pickled slugs was presumably and most likely a wizarding potion ingredient or possibly some type of food. It was mentioned by the Sleeping Wizard on the Knight Bus, who had been talking in his sleep.[1] It could be a wizarding hobby, such as making preserves.


Notes and references

  1. Harry Potter and the Prisoner of Azkaban, Chapter 3 (The Knight Bus)