Wiktionary
graunch
vb. To grind or crunch (make sound of)
Usage examples of "graunch".
Her riot gun got thoroughly graunched, but it proved one thing: the slug it fired in the process blew out the right rear tire on my remoting axle.
It sounded for a moment and then the luggage belt graunched back into motion.
But look at crime the way I have to, where folks get graunched by it just by bein' in the way.
I typed in the password, the hard-disk graunched some more, and magically all my briefing notes were revealed on the screen.