jack knife in English
noun
1
a knife with a folding blade.
Adam had chosen a jackknife rather than a fixed blade.
2
a dive in which the body is first bent at the waist and then straightened.
But still, I usually like to lounge about in a chaise lounge or something while everyone else is doing cannonballs and jackknives and freakish flips off the diving board.
verb
1
move (one's body) into a bent or doubled-up position.
the Major jackknifed his thin body at the waist
noun
Use "jack knife" in a sentence
Below are sample sentences containing the word "jack knife" from the English Dictionary. We can refer to these sentence patterns for sentences in case of finding sample sentences with the word "jack knife", or refer to the context using the word "jack knife" in the English Dictionary.
1. At one end a ruminating tar was still further adorning it with his jack- knife, stooping over and diligently working away at the space between his legs.