Buffalo buffalo Buffalo buffalo buffalo buffalo Buffalo buffalo.This is properly paraphrased as
Bison from the city of Buffalo who are bullied by other bison from the city of Buffalo in turn bully yet other bison from the city of Buffalo.Mentally supplying the word 'whom' or 'that' between the second and third occurrences of 'buffalo' helps a lot. Yet the sentence is correct without that word, as when the word 'that' is left out of the phrase "games people play."
Now, didn't you always want to know that?
Crossposted at What's Wrong with the World