Joe Nock means in slang: Josef Nockk, a Romanian celebrity was his original name. In 1989, he changed his name to better appeal to American audiences. Eleven films have featured him, three of which were roles that required him to speak. Gladiator was his highest-grossing movie appearance. In 2001, he returned to Romania to change his name to Josef Nockk because he believed his acting career was finished. Now he lives in a simpler life near Bucharest, where he works on the family farm alongside his three brothers Thommas, Robort and Dazzel. (in Slang Dictionary, added by Siena Graham)