KEN P.D. SNYDECAST #188: Die Abby features mention of Estelle Reiner (wife of Carl Reiner and wife of Rob Reiner.)
Dana mentions she was a talented ukulele player. She was! She even released an album called Ukulele Mama.
Oddly, Dana doesn't use the "ook-ulele" pronunciation that he has used in the past. He uses the more common "yook-ulele" pronunciation.
Ken mentions that Estelle famously utters the phrase "I'll have what she's having" in When Harry Met Sally. You can watch it here: