Verb
1. make an uncontrolled, short, jerky motion;
"his face is twitching"2. move with abrupt, seemingly uncontrolled motions;
"The patient's legs were jerkings"3. toss with a sharp movement so as to cause to turn over in the air
4. squeeze tightly between the fingers;
"He pinched her behind""She squeezed the bottle"5. move or pull with a sudden motion