Hi, Generally speaking, incompletely prepared, although the exact meaning about the character in your sentence is not colmpletely clear to me. I bieve the image is from an old-fashioned revolver, where you have to pull the hammer back with your thumb in order to fire. You pull it back a little, to the first position.
New words, one handy idiom, and a 2-minute quiz — delivered to your inbox to keep your streak alive.