I used this one last night(works great when the ladies tell you that they are wearing green panties for St Patty's ). It's definitely George to the waitress in the cafe. It's after Jerry tells about one of his sexual escapades, maybe the Elaine sex(?), or maybe after he talks about the dirty talker sex? Can't wait to hear this answer b/c I have been wondering about this one for a while.

Goombah's is Newman to Kramer

Mine is:
Q: No, no, they got a cure for cancer. See, it's all about big business.
(HINT:The answer is "blank" to phone.)