The conversation went something like this:
Me: I'd like to talk to you about something...
Him: Let me guess - you want to use Smalltalk.
Me: Er, no...
Him: Lisp?
Me: Right.
Him: No way.
And that was the end of Lisp at Google.
I believe "him" was Urs Holzle, who built runtimes for Self, Samlltalk and Java (which was later bought by Sun). Urs knows way more about these languages than Gat. His "no way" should be enough for anyone.