Pickled Slugs

"Not now thanks, I'm pickling some slugs."

- Sleeping Wizard.

Pickled slugs is presumably a wizarding potion ingrediant or food. It was mentioned by the Sleeping Wizard on the Knight Bus, who was talking in his sleep. It could be a wizarding hobby, such as making preserves.

Appearances
Harry Potter and the Prisoner of Azkaban (Mentioned Only)