Where an insult "sticks" (4)
I believe the answer is:
craw
(Other definitions for craw that I've seen before include "Crop of a bird" , "Gizzard" , "Bird's pouch for storing food" , "Crop the unacceptable sticks in" , "throat" .)
I believe the answer is:
craw
(Other definitions for craw that I've seen before include "Crop of a bird" , "Gizzard" , "Bird's pouch for storing food" , "Crop the unacceptable sticks in" , "throat" .)