Dictionary definition · jerk
noun
- a dull stupid fatuous person
- an abrupt spasmodic movement
- (mechanics) the rate of change of acceleration
- meat (especially beef) cut in strips and dried in the sun
- raising a weight from shoulder height to above the head by straightening the arms
- a sudden abrupt pull
verb
- pull, or move with a sudden movement"He turned the handle and jerked the door open"
- move with abrupt, seemingly uncontrolled motions"The patient's legs were jerking"
- make an uncontrolled, short, jerky motion"his face is twitching"
- jump vertically, with legs stiff and back arched"the young filly bucked"
- throw or toss with a quick motion"flick a piece of paper across the table"
Source: Open English WordNet (CC BY 4.0).