You know, I finally got so good at it that I could put my hands in my pockets and bet the kids pennies they couldn't knock my hat off. And they couldn't, either. Heh.
10 seconds sound clip from the The Milky Way (1936) movie soundboard.
You can hear this line at 01:05:58 in the DVD version of the movie.
Quote context
[...]
- Gabby, the contract! The contract!
- That's the old box shift. That's what you've been reading about in the papers.
- No?
- You gotta give it that knee action.
- You're pretty good. You're fine!
[...]