make someone convulse with laughter; The comedian convulsed the crowd'

be overcome with laughter

move or stir about violently; The feverish patient thrashed around in his bed

[ Syn: thresh , thresh about , thrash , thrash about , slash , toss , jactitate ]

shake uncontrollably; earthquakes convulsed the countryside'

cause to contract; The spasm convulses her facial muscles'

contract involuntarily, as in a spasm; The muscles in her face convulsed'