Emptied the case in the kitchen (6)

I believe the answer is:

podded

I'm a little stuck... Click here to teach me more about this clue!

'emptied' is the definition.
The definition and answer can be both related to bodily activities as well as being past participle verbs.
Maybe there's an association between them I don't understand?

'case in the kitchen' is the wordplay.
'case' becomes 'pod' (pod is a kind of case).
'in the kitchen' becomes 'ded' (I can't justify this - if you can you should believe this answer much more).
'pod'+'ded'='PODDED'

'the' acts as a link.

Can you help me to learn more?

I've seen this clue in the Evening Standard.

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