jerk

将“jerk”与“jerky”的动作或感觉相联系，想象一个人突然猛烈地拉扯或动作，就像做了一瞬间的错误动作，这样可以快速记住“jerk”这个词的意思是突然的动作或急促的动作。

jerk 猛拉，颠簸，颤动，混蛋

词源不详，可能来自拟声词，模仿猛拉，颠簸，嘎吱作响的声音。词义混蛋，二流子可能缩写自俚语jerk off,手淫，手淫坯子。比较wank,wanker.

jerk (v.1)

"to pull," 1540s, "to lash, strike as with a whip," of uncertain origin, perhaps echoic. Related: Jerked; jerking.

jerk (v.2)

as a method of preserving meat, 1707, American English, from American Spanish carquear, from charqui (see jerky). Related: Jerked.

jerk (n.2)

"tedious and ineffectual person," 1935 (the lyric in "Big Rock Candy Mountain" apparently is "Where they hung the Turk [not jerk] that invented work"), American English carnival slang, of uncertain origin. Perhaps from jerkwater town (1878), where a steam locomotive crew had to take on boiler water from a trough or a creek because there was no water tank [Barnhart, OED]. This led 1890s to an adjectival use of jerk as "inferior, insignificant." Alternatively, or influenced by, verbal phrase jerk off "masturbate" [Rawson].

jerk (n.1)

1550s, "stroke of a whip," from jerk (v.1). Sense of "sudden sharp pull or twist" first recorded 1570s. Meaning "involuntary spasmodic movement of limbs or features" first recorded 1805. As the name of a popular dance, it is attested from 1966. Sense in soda jerk attested from 1883, from the pulling motion required to work the taps.

1. He indicated the bedroom with a jerk of his head.

他扭头指了指卧室的方向。

2. He felt his head jerk reflexively.

他感到他的头反射性地动了一下。

3. Don't jerk me around, Mr Crook.

别耍我，克鲁克先生。

4. It was a knee-jerk reaction on her part.

这是她未加思索做出的反应。

5. The knife was stuck but she pulled it out with a jerk.

那把刀子被卡住了,她猛地一拔,把它拔了出来.

【draw, jerk, tow, pull, drag, haul, tug】
这组词都有“拖、拉”的意思，其区别是：
draw: 指将人或物朝出力者的方向拖，不涉及力的大小，含平稳意味，常作借喻用。
jerk: 指快而突然地拉。
tow: 特指用绳子或链条等拖或拉本身无动力或无法使用自身动力的东西。
pull: 最普通用词，包含本组其它各词的一些意思，可指朝各个方向拉，侧重一时或突然拉动的动作。
drag: 指沿斜坡而上或水平方向缓慢地拖或拉十分沉重的人或物。作借喻时可指把人硬拉扯过来。
haul: 指用力拖或拉，不涉及方向，多作航海用词。
tug: 多指一阵阵地用力拖或拉，但不一定使被拉的人或物移动。