They didn't have two together.
4 seconds sound clip from the Planes, Trains & Automobiles (1987) movie soundboard.
You can hear this line at 00:36:05 in the Blu-ray version of the movie.
Quote context
[...]
- Ow! Just nipped. Little part.
- Beautiful country though, isn't it?
- What do you figure the temperature is?
- One.
- They didn't have two together.
- Oh, I knew it. You know, the secretary was new, and I explained it.
- Yeah, I think they're just full.
- Well, it's the holidays, I guess.
[...]