They're having a flower show at the civic auditorium.
4 seconds sound clip from the Mister Ed movie soundboard.
You can hear this line at 00:05:21 in the DVD version of the movie.
Quote context
[...]
- It's on my horse. I mean, I'll pay.
- I've finished those sketches. I would like to discuss them with you at lunch.
- Very well, Post. 12:00 sharp. Good night.
- They're having a flower show at the civic auditorium.
- I know you're awake, you little faker.
- I am not going to any flower show.
- I'm in my pajamas, and I'm not stirring from this couch.
[...]