Right you are, Masked Mutt on head. It's one of my lowest.

6 seconds sound clip from Batman (1966) - Hizzonner the Penguin (S2E17) TV Series.

You can hear this line at 00:15:38 in the Blu-ray version of the movie.

Quote context

[...]

- Don't tell me you good voters are going to go to the Batman rally.

- I wouldn't go to his rally if you paid me. The man's a child-hater.

- That's right. Down the block and to the right. The Penguin rally is in full sway.

- Count us in. You can't trust a guy who doesn't like kids.

- You slimy snake in the polls. That was a dirty, low-down trick.

- Right you are, Masked Mutt on head. It's one of my lowest.

- Politics is wonderful. I can use all my lowest, slurpiest tricks, but now they're legal. Oh, I should have been a politician years ago.

- Bear in mind that most politicians are honest servants of the people. The dishonest ones are the exception.

- As candidate for mayor of Gotham City, I hope that this campaign will be a sober discussion of basic issues.

- I'm glad to see so many citizens who are concerned about their city's welfare, and interested in its problems.

[...]