I'm wise to what's in the back of your nut... old squarehead.
6 seconds sound clip from the Anna Christie (1930) movie soundboard.
You can hear this line at 00:11:14 in the DVD version of the movie.
Quote context
[...]
- Sailor is all right fella, but not for marry girl. I know that. Anna's mother, she know that too.
- When is your daughter coming? Soon?
- Why, I forget. I see. Well, she say she coming right away, that's all.
- She'll be coming here to look for you, I suppose. Better hang around, Chris.
- I'm wise to what's in the back of your nut... old squarehead.
- You wanna get rid of me because your kid's coming, huh? Wanna kick me out, huh?
- Well, see here, Chris. There ain't no Swede on no boat... that's man enough to get away with that.
- Don't you start nothing you can't finish.
- No, I don't start nothing, Marthy.
[...]