Alan: What are you doing?
Jake: Masticating.
Alan: What?
Jake: Don't worry, it doesn't mean what you think.
Alan: What do you think I think?
Jake [smiling]: You know...
Jake: Masticating.
Alan: What?
Jake: Don't worry, it doesn't mean what you think.
Alan: What do you think I think?
Jake [smiling]: You know...
Alan : What are you doing?
Jake : Masticating.
Alan : What?
Jake : Don't worry, it doesn't mean what you think.
Alan : What do you think I think?
Jake [smiling] : You know...
http://www.tv-quotes.com/shows/two-and-a-half-men/quote_12231.html