Come on, dada, let's go bye-bye.

2 seconds sound clip from the Holiday (1938) movie soundboard.

You can hear this line at 01:26:57.697 in the Blu-ray version of the movie.

Quote context

[...]

- You think it's right, don't you? Say you think it's right.

- Johnny, when two people love each other as much as you do, anything that keeps them apart must be wrong.

- Good evening.

- Good evening, sir.

- They tell me you've been away. Pleasant having you back.

- It's pleasant to be back.

- There's been a rather noticeable absence of snow these recent weeks.

- Quite.

- Father, Johnny came tonight to see Julia.

- That doesn't surprise me a great deal, daughter. Not a great deal.

- Julia, not you and me.

- Come on, dada, let's go bye-bye.

- Good evening, Johnny.

- Get your coat, darling, we're going out.

- Yes, dear.

- Oh, Father, could you explain to the Todds?

- Please close the door. I wish to speak with you both.

[...]