Poo Choo Train

Mr Hankey: Poo Choo Train's layin' down its tracks
With a [Poo Choo] all the way and back!
Cartman: Poo Poo Train is my favorite thing,
Spreading Christmas joy as we ride and sing!
(...)
Mr Hankey: Christmastime wouldn't be the same
Without hugs and kisses and a Poo Choo Train.