Death from laughter

Chrysippus allegedly died of laughter after witnessing a donkey eating his figs.
Der Tod des Dichters Pietro Aretino (The Death of the Poet Pietro Aretino) by Anselm Feuerbach

Death from laughter is a rare form of death, usually resulting from either cardiac arrest or asphyxiation, that has itself been caused by a fit of laughter. Though uncommon, death by laughter has been recorded from the times of ancient Greece to modern times.

Usually, the phrase "dying from laughter" is used as a hyperbole.