From IMDB user comments: "This is a funny episode from season 8. Even if you never watched this episode, you have no doubt been familiar with the phrase that everyone started using after it - "yada yada yada".
George is dating a girl that doesn't complete stories but instead fills in the blanks by saying "yada yada yada". Jerry says its great because she's succinct - like USA TODAY. But George soon learns she is leaving out important info.
Jerry's dentist converts to Judaism and proceeds to telling frequent Jewish jokes - so Jerry thinks he converted just so he can tell the jokes. He confides to a priest that it doesn't bother him as Jew, but as a COMIC. HILARIOUS! Then Jerry tells a dentist joke and word gets around that he's "anti-dentite". At times the episode gets a little wacky but there are some funny moments. A must see episode of you are a fan of Seinfeld!"