There’s a reason dirty knock-knock jokes refuse to go away: they’re dumb, unexpected, and weirdly effective when you’re trying to make someone laugh. If you’ve ever dropped one at exactly the right ...

Those indefatigable human detergents, the censor and the prude, have utterly failed to launder, much less expunge,man’s lowest literary form: the dirty joke. What accounts for its lusty and unabashed ...