Wiktionary
bone-crunching
a. (context idiomatic English) Very violent or hard.
Usage examples of "bone-crunching".
A single, bone-crunching squeeze left the head lolling, the body twitching and spilling piss.
I grabbed its ankles and it wrapped its talons round my wrists making me shout with the bone-crunching pain while it pulled me off the platform, cracking my knees off the rail.
Rolling to his knees, Druss grabbed the fallen man by the hair and hauled him close, delivering a bone-crunching head butt to the warrior's nose.
He'd missed his intended target, who stomped him into the ground with bone-crunching force, quickly silencing his thin reedy cries.