Jerk

a dull stupid fatuous person

a sudden abrupt pull

meat (especially beef) cut in strips and dried in the sun

an abrupt spasmodic movement

(mechanics) the rate of change of acceleration

raising a weight from shoulder height to above the head by straightening the arms

throw or toss with a quick motion

pull, or move with a sudden movement

move with abrupt, seemingly uncontrolled motions

make an uncontrolled, short, jerky motion

jump vertically, with legs stiff and back arched