make 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.

cannot make it

Cannot reach satisfactory or expected standards or do something competently; describes someone in a hopeless situation.

doctors make the worst patients

It is difficult to advise people on subjects that they are experts on.

enough to make a cat laugh

Very outlandish or outrageous.

enough to make the angels weep

Something so distressing that it causes one to lose hope and faith.

fine feathers make fine birds

Something that appears beautiful or good is by definition beautiful or good.

get a leg up

To get a boost or a lift.