holystone UK /ˈhəʊl.ɪ.stəʊn/US /ˈhoʊl.i.stoʊn/noun 2verb 1forms 3 noun2 •A piece of soft sandstone used for scouring the wooden decks of ships, usually with sand and seawater. •A stone with a naturally-formed hole, used by Yorkshiremen for good luck. verb1 •To use a holystone.Six days shalt thou labour and do all thou art able, And on the seventh—holystone the decks and scrape the cable. — 1840 formsholystoned · holystoning · holystones