Definitions

1. noun

a sudden jerk or twitch, especially of the muscles, often caused by a nervous spasm or a sudden movement.

“The doctor examined the patient’s jer and recommended some physical therapy.”

2. verb

to give a sudden, sharp pull or movement, typically with a loud noise.

“The plane’s engines were jerred to life as it prepared for takeoff.”

3. interjection

an expression of surprise or shock.

“Jer! The news just came in that the concert is sold out.”