Buffalo buffalo Buffalo buffalo buffalo buffalo Buffalo buffalo!
“Buffalo buffalo Buffalo buffalo buffalo buffalo Buffalo Buffalo.” is a grammatically valid sentence in the English language, used as an example of how homonyms and homophones can be used to create complicated linguistic constructs. It has been discussed in literature since 1972 when the sentence was used by William J. Rapaport, an associate professor at the University at Buffalo. It was posted to Linguist List by Rapaport in 1992. It was also featured in Steven Pinker’s 1994 book The Language Instinct.
THE buffalo FROM Buffalo WHO ARE buffaloED BY buffalo FROM Buffalo, buffalo (verb) OTHER buffalo FROM Buffalo. Buffalo buffalo (main clause subject) [which the] Buffalo buffalo (subordinate clause subject) buffalo (subordinate clause verb) buffalo (main clause verb) Buffalo buffalo (main clause direct object).