They can't match your little finger.
2 seconds sound clip from the Cat People (1942) movie soundboard.
You can hear this line at 00:24:59.757 in the Blu-ray version of the movie.
Quote context
[...]
- If you're determined to mourn that bird, we'll have a regular wake.
- It's not just because the bird died.
- It's me. I envy every woman I see on the street.
- They can't match your little finger.
- Do you know what happened to the bird?
- It died.
- It died of fright when I tried to take it in my hand.
[...]