Brother. You're knocking me out.
4 seconds sound clip from the The Asphalt Jungle (1950) movie soundboard.
You can hear this line at 00:35:32 in the Blu-ray version of the movie.
Quote context
[...]
- The rocks alone would be worth, conservatively speaking, half a million.
- How much would you get out of it?
- Brother. You're knocking me out.
- What if I were to tell you that I've got a plan worked out to get it all?
- I could tell them that I'd fence the stuff myself, you see?
- I'm certain I could get them to leave the stuff with me while we're waiting.
- Go on.
[...]