Answer: jackknifed

AnswerCrossword Clue
JACKKNIFEDDoubled up, in a way.
JACKKNIFEDLike many a disabled semi
jackknifed(of an articulated vehicle) Bend into a V-shape in an uncontrolled skidding movement
jackknifedMove (one's body) into a bent or doubled-up position
jackknifedJACKKNIFE, to fold up like a jackknife
jackknifed(of a diver) Perform a jackknife