Oh, you must have been dreaming. A nice cold shower will wake you up.
8 seconds sound clip from the Droopy's Double Trouble (Tex Avery, 1951) movie soundboard.
You can hear this line at 00:04:45 in the Blu-ray version of the movie.
Quote context
[...]
- Now, sit down, and I'll get you shoes.
- Well, why didn't you tell me it was time for your nap?
- Ah, sure, now, and this is more like it.
- Sure. Till you walloped me in the kisser.
- Oh, you must have been dreaming. A nice cold shower will wake you up.
- You can't be running around in the house with no clothes on. I'll get you a robe.
[...]