Uh... monster, monster... aah.
3 seconds sound clip from the Bride of the Monster (1955) movie soundboard.
You can hear this line at 00:15:19.720 in the Blu-ray version of the movie.
Quote context
[...]
- Where'd you get an idea like that?
- You mean you haven't been dodging me?
- No.
- And all those times I called and Kelton said the line was busy, it really was?
- Yes.
- OK, let's have the story on lake Marsh and the monster.
- Uh... monster, monster... aah.
- There is no such thing as monsters, this is the 20th century.
- Don't count on it. Monsters, I mean.
[...]