Pig's proverbial place (4)
I believe the answer is:
poke
'pig's proverbial place' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for poke that I've seen before include "bag" , "Proverbial pig container?" , "Thrust forward; sack" , "Probe with stick" , "Jab or prod" .)