Why do people tell dirty jokes? And what is it about a joke's dirtiness that makes it funny? G. Legman was perhaps the foremost scholar of the dirty joke, and a

“Finally I understand what it is I’ve been laughing at all these years.”—Jimmy Kimmel From the best-selling author of Why Does the World Exist? comes th

Collector of sexual folklore. Cataloger of erotica. Tireless social critic. Gershon Legman's singular, disreputable resume made him a counter-cultural touchston