To make a sudden uncontrolled movement.
To give a quick, often unpleasant tug or shake.
To masturbate.
To beat, to hit.
To throw with a quick and suddenly arrested motion of the hand.
to jerk a stone
(usually transitive) To lift using a jerk.
To flout with contempt.
To cure (meat) by cutting it into strips and drying it, originally in the sun.