Definition of shake-down:
(v) :
(transitive, ergative) To cause (something) to move rapidly in opposite directions alternatingly.
(v) :
(transitive) To move (one's head) from side to side, especially to indicate refusal, reluctance, or disapproval.
(v) :
(transitive) To move or remove by agitating; to throw off by a jolting or vibrating motion.
(v) :
(transitive) To disturb emotionally; to shock.
(v) :
(transitive, idiomatic) To lose, evade, or get rid of (something).
(v) :
(intransitive) To move from side to side.