half cocked meaning I can turn the manual film advance about 3/4 of the way to stop and then the film, being at the end of the roll and taught across the film plane, will not advance anymore and the release will not allow you to rewind the camera at this state. When I finish the roll the motor just kind of goes BRRRRRrrrrrr and you can kind of hear how it is trying to get the film to advance more.