It's nothing you'd understand.
3 seconds sound clip from the The African Queen (1952) classic radio play.
You can hear this line at 00:21:19 in the radio play.
Quote context
[...]
- Do you suppose that after I practice steering a bit more that someday I might try it?
- Miss, lemme tell ya somethin'... those rapids back there ain't nothin' to what's in front of us!
- Oh, now that I've had a taste of it, I don't wonder that you love boating.
- Boating? Excuse me, Miss, I need a drink.
- Mr. Allnut, if something's the matter, please, I must know.
- It's nothing you'd understand.
- It's been such a pleasant day up until now. What is it that's driving you to drink?
- But of course we are! What an absurd idea.
- What an absurd idea. What an absurd idea.
- Why don't you want to go on?
- Because of the river and the rapids and then Shona.
[...]