From Longman Dictionary of Contemporary Englishbe convulsed with laughter/anger etcbe convulsed with laughter/anger etcLAUGHto be laughing so much or feel so angry that you shake and are not able to stop yourself → convulse
Examples from the Corpus
be convulsed with laughter/anger etc• All of us were convulsed with laughter.• From the moment I picked up your book until I laid it down I was convulsed with laughter. 