Uh-oh, the mother-in-law.

4 seconds sound clip from the The First Bad Man (Tex Avery, 1955) movie soundboard.

You can hear this line at 00:02:21 in the Blu-ray version of the movie.

Quote context

[...]

- Texas folks has always been neighborly.

- Howdy.

- Howdy.

- How're y'all?

- We're fine, how're you all?

- Fine, thank you, how're y'all?

- Good, fine, thank you.

- The men had no trouble with their women in them days. Exceptin' the back seat driver.

- John, slow down, turn left. Watch that car, slow down. Yak yak yak. Blab blab blab. Yak yak yak.

- Well, doggone. Newlyweds.

- Uh-oh, the mother-in-law.

- Texans always had good manners.

- Clothin' was no problem at all. Everybody wore leopard skins... Uh, everybody except the leopards.

- Yes, sir, everything was peaceful and happy until the day old Dinosaur Dan, the first Texas bad man, come a-ridin' over the hills.

- He rustled all our cattle. Run off all our homesteaders.

[...]