#1 jerk v. [yank] pull, or move with a sudden movement; "He turned the handle and jerked the door open". wn
#2 jerk v. [twitch] move with abrupt, seemingly uncontrolled motions; "The patient's legs were jerkings". wn
#3 jerk n. [dork] a dull stupid fatuous person. wn
#4 jerk v. [twitch] make an uncontrolled, short, jerky motion; "his face is twitching". wn
#5 jerk n. [jerking, jolt, saccade] an abrupt spasmodic movement. wn
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