When you sit on his left knee, don't be stingy. Be prepared to pay.

6 seconds sound clip from the Santa Claus Is Comin' to Town (1970) movie soundboard.

You can hear this line at 00:21:12.970 in the Blu-ray version of the movie.

Quote context

[...]

- If you sit on my lap today, a kiss a toy is the price you'll pay. (2)

- When you sit on my left knee, don't be stingy. Be prepared to pay.

- If, whenever you take, you give a little back, then whoever you love will give a little love back.

- So give a little love, get a little love back. Don't you have a little love that you want to get back?

- If you sit on his lap today, a kiss a toy is the price you'll pay.

- When you sit on his left knee, don't be stingy. Be prepared to pay.

- Now, if you sit on my lap today, a kiss a toy is the price you'll pay.

- Ahh. A perfect day. Everybody is glum.

- I see all the little children are playing with their toys.

- Playing with their toys? Stop, in the name of the law!

[...]