stovepipe
v.— «“They got him on the ground and he was still pulling the trigger, but the gun had stovepiped,” Werner said, using a term for when pistol jams and does not retract into the firing position.» —“Officers subdue, arrest man who shot at them” by Joseph A. Gambardello Philadelphia Inquirer (Pennsylvania) Jan. 24, 2007. (source: Double-Tongued Dictionary)
This has been around almost as long as semi-auto handguns. It refers specifically to an empty casing which is caught in the ejection port upright, like a stovepipe.