jackknife
n. 1 large clasp-knife. 2 dive in which the body is bent and then straightened. v. (-fing) (of an articulated vehicle) fold against itself in an accident.
n. A large, strong clasp knife for the pocket; a pocket knife.
n. 1 large clasp-knife. 2 dive in which the body is bent and then straightened. v. (-fing) (of an articulated vehicle) fold against itself in an accident.
n. A large, strong clasp knife for the pocket; a pocket knife.