KNOCK OFF
knock off,vb.1. To make an unauthorized copy of (another’s product), usu. for sale at a substantially lower price than the original <the infringer knocked off popular dress designs>.2.Slang. To murder <the gang leader was knocked off by one of his lieutenants>.3.Slang.
To rob or burglarize <the thieves knocked off the jewelry store in broad daylight>.
[Blacks Law 8th]