jackknifes
Trailer swings around
Jackknifes is the third-person singular verb and plural noun of jackknife.
A jackknife is a folding pocket knife, or a dive where the body bends sharply at the waist then straightens before entering the water.
When a truck jackknifes, the trailer swings toward the cab, folding like the blade of a knife: The rig jackknifed on the icy highway.
Promotional film excerpt
- skidUncontrolled lateral slide
- truckHeavy freight vehicle
- rigEquipment arrangement or vehicle
- semiLarge freight truck
highway · slippery · brakes · collision · tractor-trailer · fishtail · loss of control · pileup
Long battlefield spear
- tuckFold into concealment
- springboardFlexible platform for jumping
- platformRaised flat structure
- somersaultFull-body forward rotation
entry · splash · competitive · Olympics · inward · reverse · twisting · degree of difficulty
Abdominal strengthening exercise
- abdominalOf the belly region
- crunchCrushing, grinding noise
- coreCentral essential portion
- bodyweightOne's own mass
pike · gymnastics · mat · fitness · leg raise · torso · flexibility · muscle
trailer
Promotional film excerpt
semi · highway · slippery · brakes · collision · tractor-trailer · fishtail · loss of control · pileup · weather
pike
Long battlefield spear
- tuckFold into concealment
- springboardFlexible platform for jumping
- platformRaised flat structure
somersault · entry · splash · competitive · Olympics · inward · reverse · twisting · degree of difficulty · synchronized
situp
Abdominal strengthening exercise
bodyweight · pike · gymnastics · mat · fitness · leg raise · torso · flexibility · muscle · workout
blade
Flat cutting edge
- foldingBending something over itself
- handlePart for gripping
- Swiss ArmyAlpine nation's military
multitool · camping · whittling · EDC · hinge · locking · utility · pocket clip · tanto · scales
jackknifesstraightens
Makes not crooked
layouts · extends · stretches out · unfolds · streamlines