jerk

n. jolt, jar; sudden pull, sudden start; involuntary muscular spasm; idiot, annoying person (Slang)

v. push or pull suddenly; move or cause to move in a sharp an sudden manner, move in a jolting manner; work at a soda fountain; prepare preserved meat

This article is about the physics concept of jerk. For other terms of jerk, see Jerk (disambiguation). In physics, jerk, jolt (esp in British English), surge or lurch, is the rate of change of acceleration; more precisely, the derivative of acceleration with respect to time, the second derivative of velocity, or the third derivative of position. Jerk is described by the following equation: where is acceleration, –  velocity, –  displacement stands for time.
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Noun
1. a dull stupid fatuous person
(synonym) dork
(hypernym) misfit
(hyponym) schmuck, shmuck, schmo, shmo
2. an abrupt spasmodic movement
(synonym) jerking, jolt
(hypernym) motion, movement, move, motility
(derivation) flick
3. (mechanics) the rate of change of velocity
(synonym) rate of acceleration
(hypernym) rate
(classification) mechanics
4. a sudden abrupt pull
(synonym) tug
(hypernym) pull, pulling
(derivation) twitch
Verb
1. pull, or move with a sudden movement; "He turned the handle and jerked the door open"
(synonym) yank
(hypernym) pull, draw, force
(derivation) tug
2. move with abrupt, seemingly uncontrolled motions; "The patient's legs were jerkings"
(synonym) twitch
(hypernym) move
(verb-group) twitch
(derivation) jerking, jolt
3. make an uncontrolled, short, jerky motion; "his face is twitching"
(synonym) twitch
(hypernym) move involuntarily, move reflexively
(hyponym) fibrillate
(verb-group) twitch
(derivation) jerking, jolt
4. jump vertically, with legs stiff and back arched; "the yung filly bucked"
(synonym) buck, hitch
(hypernym) move
(derivation) jerking, jolt
5. throw or toss with a quick motion; "flick a piece of paper across the table"; "jerk his head"
(synonym) flick
(hypernym) push, force
(derivation) jerking, jolt

(v. t.)
To throw with a quick and suddenly arrested motion of the hand; as, to jerk a stone.
  

(v. t.)
To give a quick and suddenly arrested thrust, push, pull, or twist, to; to yerk; as, to jerk one with the elbow; to jerk a coat off.
  

(v. t.)
To cut into long slices or strips and dry in the sun; as, jerk beef. See Charqui.
  

(v. t.)
To beat; to strike.
  

(v. i.)
To make a sudden motion; to move with a start, or by starts.
  

(v. i.)
To flout with contempt.
  

(n.)
A sudden start or spring.
  

(n.)
A short, sudden pull, thrust, push, twitch, jolt, shake, or similar motion.
  

fool, dipstick, fink Stop acting like a jerk! Stop squeezing mustard on me!