It's twice the size of Tiny Tim.
4 seconds sound clip from the The Muppet Christmas Carol movie soundboard.
You can hear this line at 01:14:02 in the Blu-ray version of the movie.
Quote context
[...]
- Buy it for me, and I'll give you a shilling. No, I'll give you 5 shillings.
- And so, the boy was off like a shot, so eager to...
- I'll bring it to Bob Cratchit's house. What a surprise it'll be.
- It's twice the size of Tiny Tim.
- Merry Christmas. Merry Christmas. Merry Christmas.
- Everyone was out and about this fine morning, and soon, he encountered two familiar faces.
[...]