Come on, it's easy. Don't be an old fuddy-duddy.

8 seconds sound clip from Batman (1966) - Hot Off the Griddle (S2E3) TV Series.

You can hear this line at 00:17:52 in the Blu-ray version of the movie.

Quote context

[...]

- With a bunch of cats meowing whenever the music stopped. Heh-heh.

- Oh, yeah, one other thing.

- Whatever her caper is, she plans it for tonight.

- Very well. Take him away, Chief O'Hara.

- It's 10 a.m. If we're to figure out her plot, we better shake a boot. Let's go.

- Come on, it's easy. Don't be an old fuddy-duddy.

- I'm afraid my dancing days ended with the Lambeth Walk, madam. Doctor's orders, you know, war injury.

- Oh, boy. I like rock 'n' roll music as much as the next red-blooded average American teenager, but this stuff is awful.

- It's the latest dance. They call it the Cattuzzi.

- By Benedict Arnold and the Traitors.

- It started a couple of weeks ago at a new restaurant on the west side called the Pink Sandbox.

[...]