Answer: JACKKNIFE

AnswerCrossword Clue
JACKKNIFEKind of dive
jackknifeA dive in which the body is first bent at the waist and then straightened
jackknifea large clasp knife / to fold up like a jackknife
jackknifeA method of assessing the variability of data by repeating a calculation on the sets of data obtained by removing one value from the complete set
jackknifeA knife with a folding blade
JACKKNIFEPool site feat
JACKKNIFEDive
JACKKNIFESemi hazard
JACKKNIFEHigh-dive move
JACKKNIFEDouble over
JACKKNIFESerious accident
JACKKNIFECertain dive
JACKKNIFETough dive
JACKKNIFEWhittler's equipment.
JACKKNIFEDiving feat.
JACKKNIFESwimmer's fancy dive
JACKKNIFEFancy dive
JACKKNIFEDiving maneuver
JACKKNIFEDiver's feat
JACKKNIFEV as in vehicular vacillation, visually
JACKKNIFEBad news for a big rig
JACKKNIFELose control, as a trucker
JACKKNIFEDive that involves touching the toes
JACKKNIFEWeapon for Benny?