convulse in WordNet English dictionary

1. be overcome with laughter
   convulse 
   
2. make someone convulse with laughter
   "The comedian convulsed the crowd"
   convulse 
   
3. contract involuntarily, as in a spasm
   "The muscles in her face convulsed"
   convulse 
   
4. cause to contract
   "The spasm convulses her facial muscles"
   convulse 
   
5. move or stir about violently
   "The feverish patient thrashed around in his bed"
   convulse  thresh  thresh about  thrash  thrash about  slash  toss  jactitate 
   
6. shake uncontrollably
   "earthquakes convulsed the countryside"
   convulse