Joint dismissal? (5)
I believe the answer is:
elbow
I believe this is a double definition.
'joint' is the first definition.
(joint of the body)
'dismissal?' is the second definition.
(I've seen this before)
(Other definitions for elbow that I've seen before include "Sort of grease" , "Jostle" , "Limb hinge" , "given to one about to leave" , "Nudge" .)