Answer: convulses

AnswerCrossword Clue
CONVULSESWrithes
convulses(of an emotion, laughter, or physical stimulus) Cause (someone) to make sudden, violent, uncontrollable movements
convulsesCONVULSE, to shake violently
convulsesThrow (a country) into violent social or political upheaval
convulses(of a person) Suffer violent involuntary contraction of the muscles, producing contortion of the body or limbs