bone hard

bone in her teeth

(of a boat or ship) A prominent bow wave (as a result of high speed).

bone in the throat

A source of continuing annoyance; a hindrance.

bone of contention

Something that continues to be disputed; something on which no agreement can be reached.

breed in the bone

To establish or ingrain firmly within someone's nature.

chill to the bone

To make someone extremely cold, or to be extremely cold.

cold hard cash

Money, regarded as an incentive that can override any doubts or ethical concerns.

die hard

Of a living being, to die only after a desperate struggle for life.

drive a hard bargain

To negotiate forcefully.