The New Joys of Yiddish: Completely Updated

Enjoy the most comprehensive and hilariously entertaining lexicon of the colorful and deeply expressive language of Yiddish. With the recent renaissance of interest in Yiddish, and in keeping with a language that embodies the variety and vibrancy of life itself, The New Joys of Yiddish brings Leo Rosten's masterful work up to date. Revised for the first time by Lawrence Bush, in close consultation with Rosten's daughters, it retains the spirit of the original—with its wonderful jokes, tidbits of cultural history, Talmudic and biblical references—and is enhanced by hundreds of new entries and thoughtful commentary on how Yiddish has evolved over the years, as well as clever illustrations by R. O. Blechman.

Did you know that cockamamy, bluffer, maven, and aha! are all Yiddish words? If you did, you're a gaon, possessing a lot of seykhl.