jackknife


Also found in: Dictionary, Thesaurus, Acronyms, Wikipedia.

jackknife

1. a knife with the blade pivoted to fold into a recess in the handle
2. a former name for a type of dive in which the diver bends at the waist in midair, with his legs straight and his hands touching his feet, finally straightening out and entering the water headfirst: forward pike dive
References in periodicals archive ?
A shooter who regularly uses the jackknife is my friend Barrie Gwillim.
The $13-million bridge project will see the existing Jackknife Bridge removed and replaced with a bridge that can redirect industrial traffic and stimulate economic development on the nearby Mission and McKellar Islands.
The company has expanded its product line with the JackKnife Smart Phone Bow Mount and the LockDown Optics Deployment System.
M Mine Smell Like Honey Michael Stipe and co rock out on this great song from Jackknife Lee-produced album Collapse Into Now.
waterproof canvas, featuring an a/c, heater port, Flood Guard flooring, Rain Shield 99 Technology, and a heavy duty steel support and frame system, is mounted on the no fishtail, no jackknife Swivel wheel transporter unit and is priced for today's budget-minded consumer.