Oh, so that's what's biting you.
2 seconds sound clip from the She Done Him Wrong movie soundboard.
You can hear this line at 00:52:30.520 in the DVD version of the movie.
Quote context
[...]
- I'm sorry I ever bothered with that girl.
- Why, you're so funny-acting, Gus.
- Funny-acting? What do you mean?
- Have I done anything you don't like?
- I tell you, Lou, I don't like this bird Stanieff always hanging around you.
- He's too sleek, too slippery. Too polite to suit me.
- Oh, so that's what's biting you.
- Why, he don't mean nothing to me. He's Rita's friend. I wanted to make him feel at home.
- Yeah? Oh, I guess I'm a jealous old fool, eh?
- They are valuable, ain't they, Gus?
- Worth pretty nearly half a million. Gonna get you a lot more of them soon.
- Oh, that... That guy, Cummings.
[...]