Truth is, not only can he dance, but he'll sing you a hell of a tune. He can do bird calls and imitate Bela Lugosi.
9 seconds sound clip from the Scent of a Woman (1992) movie soundboard.
You can hear this line at 01:27:38 in the Blu-ray version of the movie.
Quote context
[...]
- Oh, Frank, you are one incredible dancer.
- Wait'll you see Charlie dance.
- Hey.
- Michael, this is Frank and this is Charlie.
- Hi, Frank, Charlie. Sorry I'm late.
- Oh, that's okay. These two gentlemen entertained me, and time flew.
- Your girl is a hell of a tango dancer.
[...]