make a monkey out of

brass monkey

Very cold.

cannot make it

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

cheeky monkey

An impudent person, usually a child.

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 one's monkey up

To make someone angry, annoyed or irritated.