- [Colton's desk is covered with money]
- John Colton: Have a look at this.
- Yancy Derringer: I am. In my present financial condition, I've never seen anything so beautiful.
- John Colton: Yes you have. It's all bogus!
- [Before he starts his investigation, Yancy talks Colton into paying for his dinner]
- John Colton: Please see that I get a return on the investment.
- Yancy Derringer: I'll save the after-dinner mints for you.
- Yancy Derringer: My daddy used to say, "Always go to the aid of people with money. If you're in time, they may reward you; if not you can still go through their pockets before the police arrive."
- Lonesome Jackson: What's an Indian like this wandering around the streets of New Orleans?
- Yancy Derringer: He loves French cooking.
- [Yancy sits in on a poker game with only a small stake]
- Lonesome Jackson: Oh Yancy, you ain't much of a plunger. That's just chicken feed.
- Yancy Derringer: Don't you know you can get the whole Mississippi River inside a riverboat just by punching one little hole.
- [Yancy has lost all the money Colton gave him to play poker with Lonesome Jackson]
- Yancy Derringer: Hello, Mr. Colton, can I buy you a drink?
- John Colton: With what, Mr. Derringer?
- Yancy Derringer: You mean you're broke, too?
- [last lines]
- Miss Mandarin: Yancy, would you be my guest at the Sandric for a midnight supper?
- Yancy Derringer: Your guest? Celestial lady, I'll be your slave.
- [Yancy kisses Miss Mandarin's hand]
- Miss Mandarin: You and your heathen customs.