"But you can go further, and a linguist at the University of Buffalo did. He worked out that if bison from his native city, who were bullied by other bison from his native city, went and took their frustration out on still other bison from his native city, then: Buffalo buffalo Buffalo buffalo buffalo buffalo Buffalo buffalo. It's the longest grammatically correct sentence in the English language that uses only one word. Word buffs love it."引自 Buffalo/Antanaclasis