Abstract
This article begins by reviewing the overwhelmingly negative assessment of laughter and humor in Western philosophy and in Christianity, arguing that that evaluation arises from a misclassification of amusement as a malicious emotion. It then sketches a play theory of humor in which humor is an activity pursued for pleasure which allows participants to violate linguistic and social norms, especially rules about sincerity. Once we understand humor as a kind of play, familiar ethical objections to jokes based on gender and race are seen to be mistaken, and a new approach to the negative ethics of humor becomes possible. What is more, this play theory also explains how humor is morally praiseworthy in many situations.