"1. a twist or curl, as in a thread, rope, wire, or hair. 2. a muscular stiffness or soreness, as in the neck or back. 3. a flaw or imperfection likely to hinder the operation of something, as a machine or plan. 4. a mental twist; notion; whim or crotchet. 5. an eccentricity or quirk. 6. to form or cause to form a kink or kinks, as a rope."