You know he probably didn't just write that. He wrote it, but he probably just plugs that word in... you know, whatever - milk shake, you know.
10 seconds sound clip from the Before Sunrise movie soundboard.
You can hear this line at 00:52:29 in the Blu-ray version of the movie.
Quote context
[...]
- I'll carry you. You'll carry me. That's how it could be.
- Don't you know me? Don't you know me by now?
- Thanks, man. Uh... Here you go, uh...
- Nothing. I loved it. It was great.
- But what good is saved time if nobody uses it, if it just turns into more busy work?
[...]