In common parlance, and in the language of the auction-room, property is understood to be “struck off” or “knocked down,” when the auctioneer, by the fall of his hammer, or by any other audible or visible announcement signifies to the bidder that he is entitled to the property on paylug the amount of his bid, according to the terms of the sale. Sherwood v. Reade, 7 Hill (X. Y.) 439. In practice. A court is said to “strike off” a case when it directs the removal of the case from the record or docket as being one over which it has no jurisdiction and no power to hear and determine it.