MIT, pad kid poured curd pulled cod
Channel: Bart Humphries
Date: 08/12/2013

http://www.bostonmagazine.com/news/blog/2013/12/05/mit-tongue-twister-trickiest-to-say/
MIT Researchers Say They Have Created The Trickiest Tongue Twister To Date
Try and say "pad kid poured curd pulled cod" 10 times fast.
I don't seem to have much of a problem saying it.  Yeah, there were some errors, but it's nowhere near the trickiest tongue twister out there.