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