Grace tells Edith to "stifle", meaning "stop talking". On All In The Family, Archie constantly told his wife Edith to "stifle herself" in order to get her to stop talking.
The episode closes with the cast chasing each other around in fast-motion to a knock-off of the song "Yakety Sax", which was the theme song to the The Benny Hill Show. The song would accompany various comedic chase scenes on the show.