My dear, don't you know?
4 seconds sound clip from the Gone with the Wind (1939) movie soundboard.
You can hear this line at 00:21:49 in the Blu-ray version of the movie.
Quote context
[...]
- Who's that? That man looking at us and smiling.
- That's Rhett Butler. He's from Charleston.
- He has the most terrible reputation.
- He looks as if as if he knows what I look like without my shimmy.
- He's had to spend most of his time up North because his folks in Charleston won't even speak to him.
[...]