n.
1.a dull stupid fatuous person
2.an abrupt spasmodic movement
3.(mechanics) the rate of change of velocity
4.a sudden abrupt pull jerk v.
1.pull, or move with a sudden movement
2.move with abrupt, seemingly uncontrolled motions
3.make an uncontrolled, short, jerky motion
4.jump vertically, with legs stiff and back arched
5.throw or toss with a quick motion
Idiom of the Day
knock the props out from under (someone)
to destroy someone's confidence, to destroy someone's emotional or financial or moral base
The teacher knocked the props out from under the student when she criticized the student's work.