Clickbait title aside, this is most definitely one of the weirdest things I have learned recently. Apparently, this is a correct sentence:
Buffalo buffalo Buffalo buffalo buffalo buffalo Buffalo buffalo.
Yes, this is a correct sentence, meaning buffalo from Buffalo (second pair) bully buffalo from Buffalo (first set) who bully buffalo from Buffalo (third set of buffalo animals). So, we have animals randomly bullying other animals from the same place (which has the name of Buffalo).