Can you say that three times fast?

I know there are shopping contests, writing contests and even eating contests. There are brainteasers and puzzles and spelling bees. Does anyone know this word, "letsgoletsgoletsgo" or "gotobedgotobedgotobed"? I want to know if there is a competition for saying the same words over and over as fast as humanly possible. I think I can be a champion at that.

Side note- After I say it the response is always the same "I heard you the first time"...