Course, I don't have my underwear.
3 seconds sound clip from the Rain Man (1988) movie soundboard.
You can hear this line at 00:55:29 in the Blu-ray version of the movie.
Quote context
[...]
- I'll have to let you drive sometime.
- You never, never touch the steering wheel when I'm driving! Do you hear me?
- Course, I don't have my underwear.
- I'm definitely not wearing my underwear.
- What are you talking about? I gave you a fresh pair of mine this morning.
- I told you to go in the bathroom and put them on. Where are they?
[...]