For investors, your pitch should include the problem you're trying to solve, the people who have this problem, and your solution.
For pg's office hours, you should strip away all that marketing talk and just say what it is in it's most barest technical essentials.
It took us two office hours to get this! In the beginning of our second, he asked us straight out -- "wait, stop selling me. What's the problem you're trying to solve here?"
Going with six ears helped too -- we'd always debrief after the office hours, and talk about what he said, and none of us had the full picture. The dude talks fast and covers a lot of ground!
-- Devoted PG fan
For pg's office hours, you should strip away all the buzz words and describe your business (customer, market, etc) in words someone outside of this industry would understand.
Basically, I got the feeling he was trying to pare away buzz words.