Either you're flat or I am.
5 seconds sound clip from the Anna Christie (1930) movie soundboard.
You can hear this line at 00:01:32 in the DVD version of the movie.
Quote context
[...]
- I beg your pardon. Excuse me. Always the lady.
- Why, I frighten your hiccup away, Marthy.
- See here. If you soak me in the eye again I'm gonna quit you. You get me?
- No. Only on the back this time, Marthy.
- Well, I think you lose them, Marthy. Yes.
[...]