SPLURGE

Question:
What is the hardest, most difficult tongue twister in English?

Best Answer:

Three Swedish switched witches watch three Swiss Swatch watches switches. Which Swedish switched witch watch which Swiss Swatch watch witch?"

I can't even say it at a slow pace.

or

If A Dog Chews Shoes, What Shoes Should He Choose To Chew.

or say toy boat or unique new york. really really fast.