(v): make (somebody) laugh
(v): be overcome with laughter
(v): produce laughter
(v): move or stir about violently
(v): move or cause to move back and forth
(v): shake uncontrollably
(v): move or cause to move back and forth
(v): cause to contract
(v): squeeze or press together
(v): contract involuntarily, as in a spasm
(v): squeeze or press together