shake a leg

an arm and a leg

Usually used after the verb cost, but also often charge, pay, and spend: a very high price for an item or service; an exorbitant price

break a leg

Good luck!; Do your best!; Said to someone wishing they perform well in a theatrical production or comparable endeavor.

fair shake

Reasonable, unbiased treatment; a fair deal.

get a leg up

To get a boost or a lift.

give one's head a shake

To reassess the common sense of one's behaviour, ideas, etc.

hang a leg

To hesitate; to hang back.

make a leg

To make a deep bow with the right leg drawn back.

more than you can shake a stick at

Alternative form of more than one can shake a stick at.