This sentence could use Oxford commas, not to mention at least one preposition.

Ridiculously stupid.

https://isotropic.org/papers/chicken.pdf

Sure, it's been going on for years. Is someone finally going to do something about it?

In German, it would be one word

James while John had had had had had had had had had had had a better effect on the teacher

I have an unreasonable hatred of this sentence. It is so hard to parce I refuse to acknowledge it as a valid English sentence.

https://youtu.be/7fVK7atPvLQ

My favorite sentence.

My favorite word is pneumonoultramicroscopicailicogolcanoconiosis.

For more "teehee they used the same word" peep

https://en.wikipedia.org/wiki/Lion-Eating_Poet_in_the_Stone_Den

"Lion-Eating Poet in the Stone Den" (traditional Chinese: 施氏食獅史; simplified Chinese: 施氏食狮史; lit. 'The Story of Mr. Shi Eating Lions') is a short narrative poem written in Literary Chinese, with two versions composed of 92 and 94 Chinese characters respectively, which are all pronounced shi ([ʂɻ̩]) when read in Standard Mandarin, with only the tones differing.

What does the buffalo say to it's boy on his first day of school?

The Buffalo Buffalo Buffalo Buffalo Buffalo? They can't do that, that's illegal!

Or, with the scientific name of the animal:

Buffalo Bison bison bison Buffalo Bison bison bison buffalo buffalo Buffalo Bison bison bison.

I was thinking about this two days ago! Excellent timing.

Mushroom Mushroom ... ?

Syracuse Bison ([that] Albany cows confuse) intimidate Schenectady cattle.