Make nothing of repeated dirty stuff (3-3)
I believe the answer is:
'repeated dirty stuff' is the definition.
I know nothing about this answer so I cannot tell whether this works.
'make nothing of' is the wordplay.
'make' becomes 'poop' (I can't explain this - if you can you should believe this answer much more).
'nothing' becomes 'o' (looks like zero - 0).
'of' becomes 'o''.
Can you help me to learn more?