dunpickle
/ˈdʌnpɪkəl/Definitions
1. noun
A mixture of dirt or other debris stuck to food, especially after being removed from a container or storage.
“The leftover soup had a layer of dunpickle at the bottom of the can.”
2. verb
To remove food from a storage container, resulting in a mixture of dirt or debris sticking to it.
“After not opening the jar for months, the homeowner had to dunpickle the jam before serving it.”