jack-knife
- Noun. A compact folding knife.
- Noun. The front-dive pike, in which the body folds and unfolds.
- Noun. (colloquial) A semi-trailer truck accident in which the vehicle mimics the closing of a jack-knife.
- Noun. (statistics) (alternative spelling of, jackknife) .
- Verb. To fold in the middle, as a jackknife does.
- Verb. (colloquial) To cause a semi-trailer truck to fold like a jackknife in a traffic accident.
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This entry was last updated on RefTopia from its source on 3/20/2012.